JPH0881322A - Microbial composition for controlling weed - Google Patents

Microbial composition for controlling weed

Info

Publication number
JPH0881322A
JPH0881322A JP6221921A JP22192194A JPH0881322A JP H0881322 A JPH0881322 A JP H0881322A JP 6221921 A JP6221921 A JP 6221921A JP 22192194 A JP22192194 A JP 22192194A JP H0881322 A JPH0881322 A JP H0881322A
Authority
JP
Japan
Prior art keywords
ferm
genus
drechslera
pathogenic microorganism
weight
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP6221921A
Other languages
Japanese (ja)
Inventor
Kangetsu Hirase
寒月 平瀬
Masatoshi Gohara
雅敏 郷原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP6221921A priority Critical patent/JPH0881322A/en
Publication of JPH0881322A publication Critical patent/JPH0881322A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain amicrobial composition for controlling weeds capable of reducing the amount of a microbial controlling agent used and manifersting high activities by synergistic effects by mixing the microbial controlling agent containing a mold of the genus Drechslera with 5-aminolevulinic acid which is a natural product. CONSTITUTION: This microbial controlling composition for weeds is obtained by adding 5-aminolevulinic acid to a microbial controlling agent containing a mold of the genus Drechslera having high activities against weeds of the genus Panicum without manifesting any pathogenicity in useful plants. The mold of the genus Drechslera used herein is a new strain of the Drechslera monoceras, especially MH-0015, (FERM BP-2652), MH-2653 (FERM BP-2653), MH-2679 (FERM BP-2656), MH-1889 (FERM BP-3410), MH-4415 (FERM BP-3413), MH-4418 (FERM BP-3414), etc., are especially cited as the mold. The composition is capable of manifesting sufficient controlling effects on Panicum, crusgalli in a dose for a herbicide which is respectively incapable of controlling the weeds alone and is safe without any fear for environmental pollution.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明はヒエ属(Echinoc
loa spp.)に除草活性を有する微生物および5
−アミノレブリン酸を含有する雑草防除組成物に関す
る。
The present invention relates to the genus Echinoc
loa spp. ) Having herbicidal activity against
-A weed control composition containing aminolevulinic acid.

【0002】[0002]

【従来の技術】近年、化学農薬の人体や自然環境に及ぼ
す影響が問題視されるようになり、生物農薬への関心が
高まりつつある。雑草防除の分野においてもバイオ除草
剤の研究開発が盛んに行われ、米国ではすでにガガイモ
科雑草のストラングルヴァインの病原微生物ファイトフ
ィソーラ属パルミローラ種(Phytophthora
palmirola)を利用したデヴァイン(Devi
ne、アボット社 商品名)、マメ科雑草のノーザンジ
ョイントヴェッチの病原微生物コレトトリカム属グロエ
オスポリオデス種(Colletotrichum g
loeosporioides)を利用したコレゴ(C
ollego、エコゲン社 商品名)等が上市されてい
る。また特開平3−219883号公報および特開平4
−360678号公報には、ヒエ属に病原性を有するド
レックスレラ属の糸状菌分生子を水田用の微生物除草剤
として用いることが記載されている。また、特開平4−
226905号公報に、ドレックスレラ属の糸状菌と化
学除草剤を混用することで、その相乗作用によりヒエ属
雑草に対する効果を高めるとともに、ヒエ属雑草以外の
雑草も同時に防除する試みがなされている。
2. Description of the Related Art In recent years, the influence of chemical pesticides on the human body and natural environment has come to be regarded as a problem, and interest in biological pesticides is increasing. In the field of weed control, research and development of bioherbicides have been actively carried out, and in the United States, the pathogenic microorganism Phytophthora sp.
devine (Devi) using palmirola
ne, Abbott's trade name), a pathogenic bacterium of the northern joint vetch of legumes, Coletotrichum spp.
Corego using loeosporioides (C
ollego, ECOGEN brand name, etc. are on the market. Further, JP-A-3-219883 and JP-A-4
JP-A-360678 describes the use of filamentous fungi conidia of the genus Drexlera having pathogenicity to the genus Mussel as a microbial herbicide for paddy fields. In addition, JP-A-4-
In JP-A-226905, it has been attempted to enhance the effect on the genus Weed by mixing the filamentous fungus of the genus Dolexlera and a chemical herbicide to synergistically enhance the effect on the genus Weed and simultaneously control other weeds.

【0003】一方、5−アミノレブリン酸は生体内のク
ロロフィルやヘムの構成成分であるポルフィリン類の前
駆体であり、動植物及び微生物体内に広く分布する。こ
のため人体や環境には極めて安全で作用発現後は速やか
に分解されると考えられる。この化合物は単独では植物
組織内にポルフィリン類を蓄積し光増感作用により細胞
膜の破壊、細胞内容物の漏出を引き起こす作用のある生
化学実験用の試薬である。本化合物を高濃度で用いると
除草効果が見られることから、現在いくつかの研究機関
で本化合物を除草剤として利用しようとする試みがなさ
れているが、製造コスト等の問題から未だ実用化には至
っていない。
On the other hand, 5-aminolevulinic acid is a precursor of porphyrins which are constituents of chlorophyll and heme in the living body, and is widely distributed in plants and animals and microorganisms. Therefore, it is considered to be extremely safe for the human body and environment, and to be rapidly decomposed after the onset of action. This compound alone is a reagent for biochemical experiments that accumulates porphyrins in plant tissues and causes cell membrane destruction and cell content leakage by photosensitization. Since the herbicidal effect is observed when this compound is used at a high concentration, some research institutions are currently attempting to use this compound as a herbicide, but due to problems such as manufacturing costs, it is still in practical use. Has not arrived.

【0004】[0004]

【発明が解決しようとする課題】昨今の農薬の安全性問
題、環境問題を考え、上記の様な化学除草剤を用いる方
法でなく、ドレックスレラ属糸状菌株の除草効果を高め
る共力物質を検索し、より安全で実用的な雑草防除組成
物を提供することを課題とする。
Considering the recent safety and environmental problems of pesticides, we searched for synergistic substances that enhance the herbicidal effect of the filamentous fungus strain of the genus Dolex Rera, instead of the method using chemical herbicides as described above. Another object of the present invention is to provide a safer and more practical weed control composition.

【0005】[0005]

【課題を解決するための手段】本発明者らは化学除草剤
を用いることなくドレックスレラ属糸状菌を含有する微
生物防除剤の使用量を低減するため鋭意検討した結果、
天然物である5−アミノレブリン酸を混用すればドレッ
クスレラ属糸状菌と相乗的に殺草作用を発揮し、高い除
草活性を示すことを見い出し、本発明を完成させた。
[Means for Solving the Problems] As a result of intensive investigations by the present inventors to reduce the use amount of a microbial control agent containing a D. filamentous fungus without using a chemical herbicide,
It has been found that when a mixture of 5-aminolevulinic acid which is a natural product is used, the herbicidal action is synergistically exerted with the filamentous fungus of the genus Dolexella, and high herbicidal activity is exhibited, and the present invention was completed.

【0006】すなわち本発明は、有用植物に病原性を示
さずヒエ属(Echinocloaspp.)に病原性
を示すドレックスレラ属菌(Drechslera s
pp.)と5−アミノレブリン酸(以下ALAという)
とを含む雑草防除組成物、である。
[0006] That is, the present invention, Drechsleras genus that does not show the pathogenicity to useful plants but pathogenic to the genus Echinoclospa.
pp. ) And 5-aminolevulinic acid (hereinafter referred to as ALA)
A weed control composition comprising:

【0007】本発明に係わる有用植物に病原性を示さず
ヒエ属(Echinocloa spp.)に病原性を
示すドレックスレラ属菌(Drechslera sp
p.)の一部のもの[MH−0015(FERM BP
−2652)、MH−2653(FERM BP−26
53)、MH−2679(FERM BP−265
6)、MH−1889(FERM BP−3410)、
MH−4415(FERMBP−3413)、MH−4
418(FERM BP−3414)MH−5011
(FERM BP−3415)、MH−5017(FE
RM BP−3411)、MH−5018(FERM
BP−3412)、MH−5511(FERM BP−
3417)、MH−0042(FERM BP−265
9)、MH−0060(FERM BP−2657)、
MH−2883(FERM BP−3408)、MH−
0122(FERM BP−2655)、MH−278
1(FERM BP−3407)、およびMH−289
5(FERM BP−3409)は、特開平3−219
883号公報および特開平4−360678号公報によ
り公知であり、一部のものは新規である。本発明に係わ
る他の成分であるALAは、前述したように天然物であ
り、公知化合物である。
[0007] The useful plant of the present invention does not show pathogenicity, but does show pathogenicity in the genus Echinocloa spp.
p. ) [MH-0015 (FERM BP
-2652), MH-2653 (FERM BP-26
53), MH-2679 (FERM BP-265)
6), MH-1889 (FERM BP-3410),
MH-4415 (FERMBP-3413), MH-4
418 (FERM BP-3414) MH-5011
(FERM BP-3415), MH-5017 (FE
RM BP-3411), MH-5018 (FERM
BP-3412), MH-5511 (FERM BP-
3417), MH-0042 (FERM BP-265
9), MH-0060 (FERM BP-2657),
MH-2883 (FERM BP-3408), MH-
0122 (FERM BP-2655), MH-278
1 (FERM BP-3407), and MH-289.
5 (FERM BP-3409) is disclosed in JP-A-3-219.
It is known from JP-A-8831 and JP-A-4-360678, and some of them are new. As described above, ALA, which is another component of the present invention, is a natural product and a known compound.

【0008】本発明の雑草防除組成物は、ドレックスレ
ラ属菌とALAそれぞれの成分の除草効果から予想でき
ない相乗効果を示し、それぞれの成分の使用量を低減す
ることができることに加え、化学除草剤を全く使用しな
いことから、自然環境に対して安全に使用することがで
きる。その作用機構は明かではないが、ALAの細胞膜
の破壊、細胞内容物の漏出を引き起こす作用によりダメ
ージを受けた植物組織に対して、除草活性を示すドレッ
クスレラ属菌の感染が容易となることが推察される。本
発明に係わる雑草防除組成物を除草剤として使用するに
は、ドレックスレラ属菌の菌体及びALAをそのまま使
用しても良いが、一般には、ドレックスレラ属菌の菌体
及びALAを不活性な固体担体または液体担体と混合
し、水和剤、フロアブル剤あるいは液剤に調製して用い
ることが望ましい。担体としては、通常園芸用薬剤に使
用され、生物的に不活性なものであるならば固体または
液体のいずれでも使用でき、特定のものに限定されるも
のではない。例えば、固体担体としては、クレー、タル
ク、ベントナイト、炭酸カルシウム、ケイソウ土、ホワ
イトカーボン等の鉱物質粉末、大豆粉、デンプン等の植
物性粉末、ポリビニルアルコール、ポリアルキレングリ
コール等の高分子化合物があげられる。また液体担体と
してはデカン、ドデカン等の各種有機溶剤、植物性油、
鉱物油、水等があげられる。
The weed-controlling composition of the present invention exhibits a synergistic effect which cannot be predicted from the herbicidal effects of the respective components of the genus Dreyxella and ALA, and in addition to being able to reduce the amount of the respective components used, a chemical herbicide is added. Since it is not used at all, it can be used safely against the natural environment. Although its mechanism of action is not clear, it is presumed that the plant tissues damaged by the action of ALA cell membrane destruction and cell contents leakage may be easily infected with a herbicidally active D. To be done. In order to use the weed control composition according to the present invention as a herbicide, the cells of the genus Drexlera and ALA may be used as they are, but in general, the cells of the genus Drexlera and ALA are inactive solids. It is desirable to mix it with a carrier or a liquid carrier to prepare a wettable powder, a flowable agent or a liquid agent for use. The carrier is usually used for horticultural agents, and may be solid or liquid as long as it is biologically inert, and is not limited to a particular carrier. Examples of the solid carrier include clay, talc, bentonite, calcium carbonate, diatomaceous earth, mineral powder such as white carbon, soybean powder, plant powder such as starch, polyvinyl alcohol, and polymer compounds such as polyalkylene glycol. To be As the liquid carrier, decane, various organic solvents such as dodecane, vegetable oil,
Examples include mineral oil and water.

【0009】本発明に係わる雑草防除組成物におけるド
レックスレラ属菌の含有量は製剤1kg当たり分生子と
して102 〜1015個、好ましくは、106 〜1012
である。また本発明に係わる雑草防除組成物におけるA
LAの含有量は水和剤あるいは液剤では0.1〜50重
量%、フロアブル剤では0.01〜10%である。さら
に補助剤としては、通常園芸用薬剤に使用される界面活
性剤、結合剤、安定剤等を必要に応じて単独または組み
合わせて使用できる。補助剤の含有量は0〜80重量%
である。また本発明の雑草防除組成物を圃場に使用する
場合はドレックスレラ属菌の分生子量として102 〜1
15個/アール、好ましくは、106 〜1012個/アー
ルである。本発明に係わる雑草防除組成物はヒエを対象
とした場合、その除草効果が各々単独で施用した場合で
は考えられないほどの相乗的効果が得られ、予想以上の
少ない分生子量あるいは低薬量でヒエの防除が可能とな
る。さらにALAを混用することでヒエ以外の雑草を防
除できる。
The weed control composition according to the present invention has a content of Drexella spp. In the range of 10 2 to 10 15 , preferably 10 6 to 10 12 as conidia per 1 kg of the preparation. A in the weed control composition according to the present invention
The content of LA is 0.1 to 50% by weight for wettable powders or liquids, and 0.01 to 10% for flowable agents. Further, as an auxiliary agent, a surfactant, a binder, a stabilizer and the like which are usually used for horticultural agents can be used alone or in combination as necessary. Auxiliary agent content 0-80% by weight
Is. When the weed control composition of the present invention is used in the field, the amount of conidia of the genus Drexella is 10 2 to 1
It is 0 15 pieces / ares, preferably 10 6 to 10 12 pieces / ares. The weed control composition according to the present invention, when applied to the fly, has a synergistic effect that is unthinkable when the herbicidal effect is applied alone, and the amount of conidia or the dose is lower than expected. This makes it possible to control the fly. Furthermore, by mixing ALA, weeds other than millet can be controlled.

【0010】[0010]

【実施例】まずはじめに参考例として本発明の雑草防除
組成物に係わるドレックスレラ属菌の新菌株の分離・選
抜及び同定法を示す。 参考例1 微生物の分離・選抜方法及び同定 1)微生物の分離方法 自然発生しているノビエを採集し、病班を中心として1
0〜20mmの組織切片を作製し、70%エチルアルコ
ール水溶液及び有効塩素濃度2%の次亜塩素酸ナトリウ
ム水溶液にて表面殺菌を行った。これを滅菌蒸留水で3
回洗浄後、寒天培地に置床し、10℃、72時間の静置
培養を行った。その後、生育した糸状菌の菌糸先端を実
態顕微鏡下で単菌糸分離を行い、栄養培地上に純粋分離
し、7000菌株余りを得た。そのうち新規微生物であ
る本発明に係わる新変種の代表としての菌株MH−11
1010、MH−121024、MH−121025、
MH−12246、MH−122752、MH−122
755、122756、MH−122757を生命工学
工業技術研究所に寄託した。分離した糸状菌について
は、ノビエに対する病原性とイネに対する安全性を検定
した。
[Examples] First, as a reference example, a method for separating, selecting and identifying a new strain of the genus Drexlera related to the weed control composition of the present invention will be shown. Reference Example 1 Separation / Selection Method and Identification of Microorganisms 1) Separation Method of Microorganisms Naturally occurring Novier was collected and mainly 1
A tissue section of 0 to 20 mm was prepared, and surface sterilization was performed with a 70% ethyl alcohol aqueous solution and a sodium hypochlorite aqueous solution having an effective chlorine concentration of 2%. 3 with sterile distilled water
After washing twice, the plate was placed on an agar medium and static culture was carried out at 10 ° C. for 72 hours. Then, the hyphae tips of the grown filamentous fungi were separated into single hyphae under a real microscope and purely separated on a nutrient medium to obtain a surplus of 7,000 strains. Strain MH-11 as a representative of a new variety of the present invention, which is a novel microorganism.
1010, MH-121024, MH-121025,
MH-12246, MH-122752, MH-122
755, 122756 and MH-122757 have been deposited at the Institute of Biotechnology, Institute of Biotechnology. The isolated filamentous fungi were tested for pathogenicity to Nobie and safety to rice.

【0011】2)分離した糸状菌のノビエに対する病原
性及びイネに対する安全性の検定 ノビエ及びイネ(品種:ニホンバレ)を試験管内で無菌
的に育成して試験材料とした。すなわち、ノビエ及びイ
ネの種子を70%エチルアルコール水溶液及び有効塩素
濃度2%の次亜塩素酸ナトリウム水溶液にて殺菌後、滅
菌蒸留水で3回洗浄し、予め滅菌した試験管内の培地に
播種し、植物育成用のチャンバーで1.5葉期まで育苗
した。一方、分離した本発明微生物は、ポテト・デキス
トロース寒天培地で25℃、4日間平板培養を行い、菌
叢の外縁部を滅菌した5mmのコルクボーラーで打ち抜
くことによって作製した菌叢ディスクを接種源として用
いた。菌叢ディスクは、ノビエ及びイネを育成した試験
管内の培地中に植菌し、植物育成用のチャンバー内で2
5℃、10日間培養した後、微生物のノビエ及びイネに
対する病原性を、下記の−〜+++の4段階で評価し
た。その結果を第1表(表1)に示した。 +++:枯死 ++:顕著な生育阻害 +:やや生育阻害 −:影響無し
2) Assay of pathogenicity of isolated filamentous fungus for novier and safety for rice Nobie and rice (variety: Nihonbare) were aseptically grown in a test tube to obtain a test material. That is, the seeds of Nobie and rice are sterilized with an aqueous 70% ethyl alcohol solution and an aqueous sodium hypochlorite solution having an effective chlorine concentration of 2%, washed three times with sterile distilled water, and seeded in a pre-sterilized medium in a test tube. The seedlings were raised up to the 1.5 leaf stage in a plant growing chamber. On the other hand, the isolated microorganism of the present invention was subjected to plate culture on a potato-dextrose agar medium at 25 ° C. for 4 days, and the outer edge of the lawn was punched with a sterilized 5 mm cork borer to use as an inoculum source a lawn disc. Using. The flora disc was inoculated into the medium in a test tube in which novier and rice were grown, and 2
After culturing at 5 ° C. for 10 days, the pathogenicity of the microorganisms against Nobie and rice was evaluated according to the following four grades from − to +++. The results are shown in Table 1 (Table 1). ++: Withered ++: Significant growth inhibition +: Some growth inhibition −: No effect

【0012】[0012]

【表1】 [Table 1]

【0013】3)微生物の同定 MH−111010、MH−121024、MH−12
1025、MH−12246、MH−122754、M
H−122755、MH−122756菌株は、麦芽寒
天培地上、28℃で7日間平板培養することにより、コ
ロニーの大きさは65〜75mmに達し、不規則な生育
を示した。コロニーの色は灰黒色で、分生糸に出痕があ
り、大きさは幅が17〜27(大多数19〜23)μ
m、長さが35〜110(大多数70〜100)μm
で、長径と短径の比の平均値は6.1以下(大多数4.
5〜5.0)であった。また形状はやや直線状である。
分生糸の隔壁は大部分が4〜6個で、分生糸柄の形状は
真直である。
3) Identification of Microorganisms MH-11110, MH-121024, MH-12
1025, MH-12246, MH-122754, M
When the H-122755 and MH-122756 strains were plated on a malt agar medium at 28 ° C for 7 days, the size of the colonies reached 65 to 75 mm and showed irregular growth. The color of the colony is grey-black, there are traces on the silk, and the size is 17-27 (majority 19-23) μ
m, length 35-110 (mostly 70-100) μm
The average value of the ratio of the major axis to the minor axis is 6.1 or less (the majority 4.
5 to 5.0). The shape is a little straight.
Most of the partition walls of the split silk are 4 to 6, and the shape of the split silk handle is straight.

【0014】一方、従来知られていた、ドレックスレラ
・モノセラス(ドレックスレラ・モノセラス var.
モノセラス)では、分生子の大きさは幅が16〜25
(大多数17〜20)μm、長さが60 150(大多
数100〜120)μmで、長径と短径の比(長さ/
幅)の平均値は5.9以上(大多数、6.2〜6.5)
であった。また形状はやや曲がっている。分生子の隔壁
は、大部分が4〜10(大多数5〜7)個で、分生子柄
の形状は真直である。
On the other hand, the conventionally known Drexlera monoceras (Drexlera monoceras var.
In Monoceras), the size of conidia is 16 to 25 in width.
(Majority 17 to 20) μm, length 60 150 (majority 100 to 120) μm, ratio of major axis to minor axis (length / length
The average value of the width is 5.9 or more (the majority, 6.2 to 6.5).
Met. The shape is also slightly curved. Most of the partition walls of conidia are 4 to 10 (majority 5 to 7), and the shape of the conidia stalk is straight.

【0015】以上の特徴からエリスの分類によると、M
H−111010、MH−121024、MH−121
025、MH−122124、MH−122754、M
H−122755、MH−122756菌株はドレック
スレラ属のモノセラス種に分類されるが、従来の菌株
と、分生子の大きさ及び形状、隔壁数の分布範囲にずれ
があり、また病原性も異なるので、従来の菌株と異なる
新変種であることがわかる。
From the above characteristics, according to Eris' classification, M
H-11110, MH-121024, MH-121
025, MH-122124, MH-122754, M
The H-122755 and MH-122756 strains are classified into the monoceras species of the genus Dolexlera, but there are differences in the size and shape of conidia, the distribution range of the number of septa, and the pathogenicity of the strains. It can be seen that this is a new variety different from the conventional strain.

【0016】更に、本発明の新変種が従来のドレックス
レラ・モノセラス var.モノセラスと異なることを
実証するために、以下に示すように、酵素のアイソザイ
ムパターンの比較をHunterらの方法に従って行っ
た。酵素としては、環境に影響されにくいα−エステラ
ーゼを用いた。
In addition, the new variant of the present invention is the conventional Drexlera monoceras var. In order to demonstrate that it differs from Monoceras, a comparison of the isozyme patterns of the enzymes was performed according to the method of Hunter et al., As shown below. As the enzyme, α-esterase, which is not easily affected by the environment, was used.

【0017】本発明新変種および比較のための各種菌株
をポテト・シュークロース培地中、25℃、暗条件下、
7−10日静置培養し、菌体マットを得た。得られた菌
体マットを蒸留水で洗浄し、重量測定を行った後、−8
0℃のフリーザーで凍結乾燥し、1〜1.5倍容量の
0.05Mトリス−塩酸バッファー(pH7.4)を加
えて破砕した。この破砕液を濾過し、濾液を10,00
0rpmで遠心分離して、その上清をサンプルとした。
サンプル中のタンパク質量はLowryの方法で定量し
た。
The new variants of the present invention and various strains for comparison were tested in a potato-sucrose medium at 25 ° C. under dark conditions.
After static culture for 7 to 10 days, a cell mat was obtained. The resulting bacterial cell mat was washed with distilled water and weighed, then -8
It was freeze-dried in a freezer at 0 ° C., and 1-1.5 times volume of 0.05 M Tris-hydrochloric acid buffer (pH 7.4) was added for crushing. The disrupted liquid is filtered and the filtrate is replaced with 10,000
After centrifugation at 0 rpm, the supernatant was used as a sample.
The amount of protein in the sample was quantified by the Lowry method.

【0018】ラージスラプゲル電気泳動層用い、下層に
10%アクリルアミドゲル、上層に濃縮ゲルを調製し、
上記方法で得られたサンプルを1ウェル当たり50μg
のタンパク質量となるように重層後、ランニングバッフ
ァー中、30mAで2時間電気泳動を行った。 電気泳動操作条件; アクリルアミドゲル 10%ゲル 濃縮ゲル A 12ml 1.8ml B 9ml − C − 3ml D 140μl 36μl TMED 20μl 12μl H2O 15ml 7.2ml A:アクリルアミド 29.8% BISアクリルアミド 0.2% B:1.5M Tris−HCl(pH8.8) C:0.5M Tris−HCl(pH6.8) D:10%過硫酸アンモニウム サンプルバッファー 0.5M Tris−HCl(pH6.8) 5ml 0.05M BPB 2ml Glycerol 2ml H2O 28ml ランニングバッファー 250mM Tris 1.92M glycine 電気泳動を行ったゲルのエステラーゼを常法により染色
し、ザイモグラムのパターンを比較したところ、MH−
111010、MH−121024、MH−12102
5、MH−12246、MH−122754、MH−1
22755及びMH−122756は図1及び2に示す
ように、ドレックスレラ・モノセラスvar.モノセラ
スとは異なるアイソザイムパターンを有する新変種と判
定された。次に本発明のに係わる雑草防除組成物を実施
例として示す。
Using a large slap gel electrophoresis layer, a lower layer of 10% acrylamide gel and an upper layer of a concentrated gel were prepared.
50 μg / well of the sample obtained by the above method
After overlaying so that the amount of protein would be the same as above, electrophoresis was performed in a running buffer at 30 mA for 2 hours. Electrophoresis operation conditions: Acrylamide gel 10% gel Concentrated gel A 12 ml 1.8 ml B 9 ml-C-3 ml D 140 μl 36 μl TMED 20 μl 12 μl H 2 O 15 ml 7.2 ml A: Acrylamide 29.8% BIS Acrylamide 0.2% B : 1.5M Tris-HCl (pH 8.8) C: 0.5M Tris-HCl (pH 6.8) D: 10% ammonium persulfate sample buffer 0.5M Tris-HCl (pH 6.8) 5ml 0.05M BPB 2ml Glycerol 2 ml H 2 O 28 ml Running buffer 250 mM Tris 1.92M Glycine The esterase of the gel subjected to electrophoresis was stained by a conventional method, and the zymogram patterns were compared.
1111010, MH-121024, MH-12102
5, MH-12246, MH-122754, MH-1
22755 and MH-122756, as shown in FIGS. 1 and 2, Drexlera monoceras var. It was determined to be a new variant with an isozyme pattern different from that of Monoceras. Next, weed control compositions according to the present invention will be shown as examples.

【0019】実施例1(水和剤) ネオペレックス(商品名/花王製)2重量%、トリトン
(X−100)2重量%、ホワイトカーボン5重量%、
ALA1重量%をドレックスレラ属菌(MH−4418
菌株)の分生子を水和剤1g当たり108 個含む懸濁液
で含浸、風乾した後、ケイソウ土90重量%をよく粉砕
混合して水和剤を得た。
Example 1 (wettable powder) Neoperex (trade name / manufactured by Kao) 2% by weight, Triton (X-100) 2% by weight, white carbon 5% by weight,
1% by weight of ALA is used as a bacterium of the genus Dolex Rera (MH-4418).
Strains) were impregnated with a suspension containing 10 8 per 1 g of wettable powder, air-dried, and then 90% by weight of diatomaceous earth was well pulverized and mixed to obtain a wettable powder.

【0020】実施例2(水和剤) ネオペレックス(商品名/花王製)2重量%、トリトン
(X−100)2重量%、ノイゲンEA80(商品名/
三洋化成製)1重量%、ホワイトカーボン5重量%、A
LA20重量%をドレックスレラ属菌(MH−5511
菌株)の分生子を水和剤1g当たり106 個含む懸濁液
で含浸、風乾した後、ケイソウ土70重量%をよく粉砕
混合して水和剤を得た。
Example 2 (wettable powder) Neoperex (trade name / manufactured by Kao) 2% by weight, Triton (X-100) 2% by weight, Neugen EA80 (trade name /
Sanyo Kasei) 1% by weight, white carbon 5% by weight, A
20% by weight of LA is used as a bacterium of the genus Dolex Rera (MH-5511).
(Strain) was impregnated with a suspension containing 10 6 per 1 g of wettable powder, air-dried, and then 70% by weight of diatomaceous earth was well pulverized and mixed to obtain a wettable powder.

【0021】実施例3(水和剤) ニューカルゲンP−150(商品名/竹本油脂製)2重
量%、ホワイトカーボン5重量%、ALA1重量%をド
レックスレラ属菌(MH−111010菌株)の分生子
を水和剤1g当たり108 個含む懸濁液で含浸、風乾し
た後、ケイソウ土92重量%をよく粉砕混合して水和剤
を得た。
Example 3 (wettable powder) 2% by weight of Newcargen P-150 (trade name / manufactured by Takemoto Yushi Co., Ltd.), 5% by weight of white carbon and 1% by weight of ALA were conidia of a bacterium of the genus Dolexrella (MH-1110 strain). Was impregnated with a suspension containing 10 8 per 1 g of a wettable powder, air-dried, and 92 wt% of diatomaceous earth was well pulverized and mixed to obtain a wettable powder.

【0022】実施例4(水和剤) ニューカルゲンP−150(商品名/竹本油脂製)2重
量%、ソルポール3463(商品名/東邦化学製)2重
量%、ノイゲンEA80(商品名/三洋化成製)1重量
%、ALA20重量%をドレックスレラ属菌(MH−1
22754菌株)の分生子を水和剤1g当たり106
含む懸濁液で含浸、風乾した後、ケイソウ土75重量%
をよく粉砕混合して水和剤を得た。
Example 4 (wettable powder) Newcargen P-150 (trade name / Takemoto Yushi) 2% by weight, Sorpol 3463 (product name / Toho Kagaku) 2% by weight, Neugen EA80 (trade name / Sanyo Kasei) Made) 1 wt%, ALA 20 wt% Dorex Rera genus (MH-1
Impregnated with conidia of 22754 strain) with a suspension containing 10 6 cells per 1g wettable powder, dried in air, diatomaceous earth 75 wt%
Was pulverized and mixed well to obtain a wettable powder.

【0023】実施例5(水和剤) ニューカルゲンTG−285(商品名/竹本油脂製)2
重量%、ソルポール7655(商品名/東邦化学製)2
重量%、ALA1重量%をドレックスレラ属菌(MH−
0042菌株)の分生子を水和剤1g当たり108 個含
む懸濁液で含浸、風乾した後、ケイソウ土95重量%を
よく粉砕混合して水和剤を得た。
Example 5 (wettable powder) Newcalgen TG-285 (trade name / manufactured by Takemoto Yushi) 2
% By weight, Solpol 7655 (product name / Toho Chemical) 2
% By weight, ALA 1% by weight is a strain of the genus Dolex Rera (MH-
Strains) were impregnated with a suspension containing 10 8 per 1 g of wettable powder, air-dried, and then 95% by weight of diatomaceous earth was well pulverized and mixed to obtain a wettable powder.

【0024】実施例6(水和剤) ネオペレックス(商品名/花王製)2重量%、トリトン
(X−100)2重量%、ノイゲンEA80(商品名/
三洋化成製)1重量%、ホワイトカーボン5重量%、A
LA20重量%をドレックスレラ属菌(MH−0122
菌株)の分生子を水和剤1g当たり106 個含む懸濁液
で含浸、風乾した後、ケイソウ土70重量%をよく粉砕
混合して水和剤を得た。
Example 6 (Wettable powder) Neoperex (trade name / manufactured by Kao) 2% by weight, Triton (X-100) 2% by weight, Neugen EA80 (trade name /
Sanyo Kasei) 1% by weight, white carbon 5% by weight, A
20% by weight of LA is used as a genus of Drexrella (MH-0122
(Strain) was impregnated with a suspension containing 10 6 per 1 g of wettable powder, air-dried, and then 70% by weight of diatomaceous earth was well pulverized and mixed to obtain a wettable powder.

【0025】実施例7(フロアブル剤) 水79重量%に溶解したサンエキス(P252)10重
量%及びALA1重量%を湿式粉砕混合し、ドレックス
レラ属菌(MH−5017)の分生子をフロアブル剤1
ml当たり1010個含む分生子懸濁液9.6重量%に溶
解したケルザンS(商品名/ケルコ製)0.4重量%を
加えて混合してフロアブル剤を得た。
Example 7 (flowable agent) 10 wt% of sun extract (P252) dissolved in 79 wt% of water and 1 wt% of ALA were wet-milled and mixed, and conidia of the genus Drexella (MH-5017) were used as flowable agent 1.
0.4 wt% of Kelzan S (trade name / manufactured by Kelco) dissolved in 9.6 wt% of conidial suspension containing 10 10 per ml was added and mixed to obtain a flowable agent.

【0026】実施例8(フロアブル剤) 水65重量%に溶解したソルポール7566(商品名/
東邦化学製)10重量%、ALA5重量%ドレックスレ
ラ属菌(MH−0015)の分生子をフロアブル剤1m
l当たり108 個含む分生子懸濁液10重量%を混合
後、湿式粉砕混合し、水9.6重量%に溶解したケルザ
ンS(商品名/ケルコ製)0.4重量%を加えて混合し
てフロアブル剤を得た。
Example 8 (flowable agent) Solpol 7566 (trade name / dissolved in 65% by weight of water)
Toho Chemical Co., Ltd.) 10 wt%, ALA 5 wt% Conidia of the genus Dolex Rera (MH-0015) are flowable agents 1 m
10% by weight of conidial suspension containing 10 8 per liter was mixed, wet-milled and mixed, and 0.4% by weight of Kelzan S (trade name / made by Kelco) dissolved in 9.6% by weight of water was added and mixed. Then, a flowable agent was obtained.

【0027】実施例9(フロアブル剤) 水79重量%に溶解したデモールN(商品名/花王製)
10重量%及びALA1重量%を湿式粉砕混合し、ドレ
ックスレラ属菌(MH−121024)の分生子をフロ
アブル剤1ml当たり1010個含む分生子懸濁液9.6
重量%に溶解したキサンタンガム0.4重量%を加えて
混合してフロアブル剤を得た。
Example 9 (flowable agent) Demol N (trade name / manufactured by Kao) dissolved in 79% by weight of water
A conidial suspension containing 10 10 % by weight and 1% by weight of ALA in a wet pulverized mixture and containing 10 10 conidia of the genus Dolex Rera (MH-121024) per ml of the flowable agent 9.6.
0.4 wt% of xanthan gum dissolved in wt% was added and mixed to obtain a flowable agent.

【0028】実施例10(フロアブル剤) 水65重量%に溶解したサンエキス(P252)10重
量%、ALA5重量%ドレックスレラ属菌(MH−12
2756)の分生子をフロアブル剤1ml当たり108
個含む分生子懸濁液10重量%を混合後、湿式粉砕混合
し、水9.6重量%に溶解したアラビアガム0.4重量
%を加えて混合してフロアブル剤を得た。
Example 10 (flowable agent) 10% by weight of sun extract (P252) dissolved in 65% by weight of water, 5% by weight of ALA Drexella spp. (MH-12)
2756) Conidia 10 8 per ml of flowable agent
After mixing 10% by weight of the conidium suspension containing 20% by weight, the mixture was wet pulverized and mixed, and 0.4% by weight of gum arabic dissolved in 9.6% by weight of water was added and mixed to obtain a flowable agent.

【0029】実施例11(フロアブル剤) 水79重量%に溶解したニューカルゲンFS−5(商品
名/竹本油脂製)10重量%及びALA1重量%を湿式
粉砕混合し、ドレックスレラ属菌(MH−0060)の
分生子をフロアブル剤1ml当たり 1010個含む分生
子懸濁液9.6重量%に溶解したケルザンS(商品名/
ケルコ製)0.4重量%を加えて混合してフロアブル剤
を得た。
Example 11 (flowable agent) 10 wt% of New Calgen FS-5 (trade name / manufactured by Takemoto Yushi Co., Ltd.) dissolved in 79 wt% of water and 1 wt% of ALA were wet pulverized and mixed, and a bacterium of the genus Dolex Rera (MH-0060). Kerzan S dissolved in 9.6% by weight of a conidial suspension containing 10 10 conidia per 1 ml of a flowable agent (trade name /
0.4 wt% of Kelco) was added and mixed to obtain a flowable agent.

【0030】実施例12(フロアブル剤) 水65重量%に溶解したサンエキス(P252)10重
量%、ALA5重量%ドレックスレラ属菌(MH−27
81)の分生子をフロアブル剤1ml当たり108 個含
む分生子懸濁液10重量%を混合後、湿式粉砕混合し、
水9.6重量%に溶解したケルザンS(商品名/ケルコ
製)0.4重量%を加えて混合してフロアブル剤を得
た。
Example 12 (flowable agent) 10% by weight of sun extract (P252) dissolved in 65% by weight of water, 5% by weight of ALA Dorexella spp. (MH-27)
81), 10% by weight of a conidial suspension containing 10 8 conidia per ml of a flowable agent, and then wet pulverized and mixed,
0.4 wt% of Kelzan S (trade name / made by Kelco) dissolved in 9.6 wt% of water was added and mixed to obtain a flowable agent.

【0031】試験例1 水田雑草に対する除草効果(水
和剤) ノビエの種子を1/1,000aのポットに詰めた水田
土壌に播種し、2葉期まで育苗した。上記実施例1に記
載した方法に準拠し調製した水和剤100mgを10m
lの水に分散させ、雑草茎葉部にスプレー散布した。水
深を0cmとし、昼間35℃、夜間20℃の温室内で栽
培した。施用後20日に残存個体数を数え、次式によ
り、雑草に対する防除率として第2表(表2〜4)に示
した。
Test Example 1 Herbicidal effect against paddy field weeds (wettable powder) Seeds of Novier were sown in paddy soil packed in pots of 1 / 1000a, and seedlings were raised up to the 2-leaf stage. 10 mg of wettable powder 100 mg prepared according to the method described in Example 1 above
It was dispersed in 1 l of water and sprayed on the leaves of the weeds. It was cultivated in a greenhouse at a water depth of 0 cm at 35 ° C during the day and 20 ° C at night. The number of remaining individuals was counted 20 days after application, and the control rate against weeds was shown in Table 2 (Tables 2 to 4) by the following formula.

【0032】 [0032]

【0033】[0033]

【表2】 [Table 2]

【0034】[0034]

【表3】 [Table 3]

【0035】[0035]

【表4】 第1表より、本発明に係わるドレックスレラ属菌とAL
Aの混合除草剤組成物は、各単独施用の場合に比べ除草
効果が相乗的に増大した。
[Table 4] From Table 1, it can be seen that the strain of the genus Dolex Rera according to the present invention and AL
The mixed herbicidal composition of A synergistically increased the herbicidal effect as compared with the case of applying each alone.

【0036】試験例2 水田雑草に対する除草効果(フ
ロアブル剤) ノビエの種子を1/1,000aのポットに詰めた水田
土壌に播種し、2葉期まで育苗した。上記実施例7に記
載した方法に準拠し調製したフロアブル剤100μlを
10mlの水に分散させ、雑草茎葉部にスプレー散布し
た。水深を0cmとし、昼間35℃、夜間20℃の温室
内で栽培した。施用後20日に残存個体数を数え、次式
により、雑草に対する防除率として第3表(表5〜7)
に示した。
Test Example 2 Herbicidal Effect on Paddy Field Weeds (Floable Agent) Seeds of Novier were sown on paddy soil filled in a pot of 1 / 1,000 a, and seedlings were raised to the 2 leaf stage. 100 μl of a flowable agent prepared according to the method described in Example 7 above was dispersed in 10 ml of water and sprayed on the leaves of weeds. It was cultivated in a greenhouse at a water depth of 0 cm at 35 ° C during the day and 20 ° C at night. The number of the remaining individuals was counted 20 days after application, and the control rate against weeds was calculated according to the following formula (Table 3).
It was shown to.

【0037】[0037]

【表5】 [Table 5]

【0038】[0038]

【表6】 [Table 6]

【0039】[0039]

【表7】 第2表より、本発明に係わるドレックスレラ属菌とAL
Aの混合組成物は、各単独施用の場合に比べ除草効果が
相乗的に増大した。
[Table 7] From Table 2, it can be seen that the strain of the genus Drexlera according to the present invention and AL
The mixed composition of A synergistically increased the herbicidal effect as compared with the case where each composition was applied alone.

【0040】[0040]

【発明の効果】本発明に係わるドレックスレラ属菌とA
LAの混合組成物は、各々単独では防除することができ
ない除草剤施用量で、ノビエに対して十分な防除効果を
示した。本発明に係わる微生物は、自然界の微生物から
選抜されたものであり、ALAも生体内に存在する物質
であることから、有機合成農薬で懸念されている環境汚
染の心配が無く安全である。
EFFECTS OF THE INVENTION
The mixed composition of LA showed a sufficient controlling effect on Novier at the herbicidal application rate which cannot be controlled by itself. The microorganism according to the present invention is selected from natural microorganisms, and since ALA is also a substance existing in the living body, it is safe without concern about environmental pollution which is a concern with organic synthetic pesticides.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明に係わる新規微生物(ドレックスレラ・
モノセラス var.ミクロスポラス)のエステラーゼ
のザイモグラムパターンを示す図である。
FIG. 1 is a novel microorganism according to the present invention (Drex Rera.
Monoceras var. FIG. 3 is a view showing a zymogram pattern of esterase of (Microsporus).

【図2】従来のドレックスレラ・モノセラス var.
モノセラスのエステラーゼのザイモグラムパターンを示
す図である。
FIG. 2 Conventional Drex Rera monoceras var.
FIG. 6 shows a zymogram pattern of monoceras esterase.

Claims (9)

【特許請求の範囲】[Claims] 【請求項1】 有用植物に病原性を示さずヒエ属(Ec
hinocloaspp.)に病原性を示すドレックス
レラ属菌(Drechslera spp.)と5−ア
ミノレブリン酸とを含む雑草防除組成物。
1. A genus Echinacea (Ec) which does not show pathogenicity to useful plants.
hinocloasp sp. ), And a weed control composition containing 5-aminolevulinic acid and Drechsler spp.
【請求項2】 ドレックスレラ属菌が病原微生物ドレッ
クスレラ モノセラス(Drechslera mon
oceras var. monoceras)の新菌
株であることを特徴とする請求項1に記載の雑草防除組
成物。
2. A bacterium belonging to the genus Dolexlera is a pathogenic microorganism, Drechslera monceras.
oceras var. The composition for controlling weeds according to claim 1, which is a new strain of Monoceras).
【請求項3】 病原微生物ドレックスレラ属菌が病原微
生物ドレックスレラモノセラス(Drechslera
monoceras var. monocera
s)の新菌株がMH−0015(FERM BP−26
52)、MH−2653(FERM BP−265
3)、MH−2679(FERM BP−2656)、
MH−1889(FERM BP−3410)、MH−
4415(FERM BP−3413)、MH−441
8(FERM BP−3414)MH−5011(FE
RM BP−3415)、MH−5017(FERM
BP−3411)、MH−5018(FERM BP−
3412)或いはMH−5511(FERM BP−3
417)であることを特徴とする請求項2に記載の雑草
防除組成物。
3. The pathogenic microorganism Drexlera spp. Is a pathogenic microorganism Drechslera (Drechslera).
monoceras var. monocera
s) is a new strain of MH-0015 (FERM BP-26
52), MH-2653 (FERM BP-265
3), MH-2679 (FERM BP-2656),
MH-1889 (FERM BP-3410), MH-
4415 (FERM BP-3413), MH-441
8 (FERM BP-3414) MH-5011 (FE
RM BP-3415), MH-5017 (FERM
BP-3411), MH-5018 (FERM BP-
3412) or MH-5511 (FERM BP-3
417), The composition for controlling weeds according to claim 2.
【請求項4】 ドレックスレラ属菌が病原微生物ドレッ
クスレラ モノセラス(Drechslera mon
oceras var. microsporus)の
新菌株であることを特徴とする請求項1に記載の雑草防
除組成物。
4. A bacterium belonging to the genus Dolexlera is a pathogenic microorganism, Drechslera monceras.
oceras var. The composition for controlling weeds according to claim 1, which is a new strain of (Microsporus).
【請求項5】 病原微生物ドレックスレラ属菌が病原微
生物ドレックスレラモノセラス(Drechslera
monoceras var. monocera
s)の新菌株がMH−111010(FERM BP−
3864)、MH−121024(FERM BP−4
498)、MH−121025(FERM BP−44
99)、MH−122124(FERM BP−450
0)、MH−122754(FERM BP−450
1)、MH−122755(FERM BP−450
2)或いはMH−122756(FERM BP−45
03)であることを特徴とする請求項4に記載の雑草防
除組成物。
5. The pathogenic microorganism Drexlera is a pathogenic microorganism Drexlera monoceras.
monoceras var. monocera
s) is a new strain of MH-11110 (FERM BP-
3864), MH-121024 (FERM BP-4
498), MH-121025 (FERM BP-44
99), MH-122124 (FERM BP-450)
0), MH-122754 (FERM BP-450)
1), MH-122755 (FERM BP-450
2) or MH-122756 (FERM BP-45
03), the weed control composition according to claim 4.
【請求項6】 ドレックスレラ属菌が病原微生物ドレッ
クスレラ ラベネリ(Drechslera rave
nelii)の新菌株であることを特徴とする請求項1
に記載の雑草防除組成物。
6. A bacterium belonging to the genus Dolexlera is a pathogenic microorganism, Drechslera raveneri.
A new strain of nelii).
The weed control composition as described in 1.
【請求項7】 病原微生物ドレックスレラ ラベネリ
(Drechsleraravenelii)の新菌株
がMH−0042(FERM BP−2659)、MH
−0060(FERM BP−2657)或いはMH−
2883(FERM BP−3408)であることを特
徴とする請求項4に記載の雑草防除組成物。
7. A new strain of the pathogenic microorganism Drechslera ravenelii is MH-0042 (FERM BP-2659), MH.
-0060 (FERM BP-2657) or MH-
2883 (FERM BP-3408), The weed control composition according to claim 4, which is characterized in that
【請求項8】 ドレックスレラ属菌が病原微生物ドレッ
クスレラ ポア(Drechslera poa)の新
菌株であることを特徴とする請求項1に記載の雑草防除
組成物。
8. The weed control composition according to claim 1, wherein the bacterium belonging to the genus Dolexlera is a new strain of the pathogenic microorganism Drechslera poa.
【請求項9】 病原微生物ドレックスレラ ポア(Dr
echslera poa)の新菌株がMH−0122
(FERM BP−2655)、MH−2781(FE
RM BP−3407)、或いはMH−2895(FE
RM BP−3409)であることを特徴とする請求項
6に記載の雑草防除組成物。
9. A pathogenic microorganism, Drex Relapore (Dr.
ech-0122 is a new strain of echsera poa)
(FERM BP-2655), MH-2781 (FE
RM BP-3407) or MH-2895 (FE
The composition for controlling weeds according to claim 6, which is RM BP-3409).
JP6221921A 1994-09-16 1994-09-16 Microbial composition for controlling weed Pending JPH0881322A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6221921A JPH0881322A (en) 1994-09-16 1994-09-16 Microbial composition for controlling weed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6221921A JPH0881322A (en) 1994-09-16 1994-09-16 Microbial composition for controlling weed

Publications (1)

Publication Number Publication Date
JPH0881322A true JPH0881322A (en) 1996-03-26

Family

ID=16774250

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6221921A Pending JPH0881322A (en) 1994-09-16 1994-09-16 Microbial composition for controlling weed

Country Status (1)

Country Link
JP (1) JPH0881322A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9333156B2 (en) 2005-04-28 2016-05-10 Sbi Pharmaceuticals Co., Ltd. External preparation for skin

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9333156B2 (en) 2005-04-28 2016-05-10 Sbi Pharmaceuticals Co., Ltd. External preparation for skin

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