CN1165617A

CN1165617A - Jiameiling powder for prevention and treatment of multiple kinds of gray mold

Info

Publication number: CN1165617A
Application number: CN 96117194
Authority: CN
Inventors: 张俊波; 屠予钦; 徐西之
Original assignee: XINYI AGRICULTURAL CHEMICALS PLANT JIANGSU PROV
Current assignee: XINYI AGRICULTURAL CHEMICALS PLANT JIANGSU PROV
Priority date: 1996-11-28
Filing date: 1996-11-28
Publication date: 1997-11-26

Abstract

A powdered agricultural chemical for preventing and treating more kinds of gray mold contains methyl thiophanate (5.0-6.0%), diethofencarb (1.2-1.5%) and filler. Its granularity is 20-60 microns. Its advantages include good flowability and suspension and high synergistic action.

Description

A kind of Jiameiling pulvis that is used to prevent and treat multiple gray mold

The present invention relates to a kind of bactericide, be particularly useful for preventing and treating the Jiameiling pulvis of multiple gray mold, it is the mixing powder of thiophanate methyl and the mould prestige of second.

Prevent and treat the medicaments such as disinfectant use in agriculture Sukeling of multiple gray mold at present, virus has developed immunity to drugs to it, is particularly useful on greenhouse, booth and other protection ground vegetables and the herbaceous fruit.The special ecological environment (space of sealing, height sealing degree, high humility and the temperature of crop) of above-mentioned protection ground industrialized agriculture is that dispersity is wanted height to the requirement of pulvis, and the penetration capacity of powder in the plant strain clump is eager to excel, and it is high that the deposition of powder on plant wanted.Powder deposition on the each several part crop leaf in booth reached about 77% when generally particle size 85% was by 325 orders.Because the mould prestige of existing second is effective for the pathogen that benzimidazole germicide has been developed immunity to drugs, and to still for the disease of responsive bacterial classification, do harm to and render a service very poorly on the contrary, Sukeling is also had similar performance, and the mould prestige price of second is too high.

The object of the present invention is to provide the bactericide of the Sukeling that a kind of replacement developed immunity to drugs already, have bigger fungicidal spectrum, deposition height, the bactericide that bactericidal effect is good.

The object of the present invention is achieved like this: comprise thiophanate methyl 5.0-6.0%, and two kinds of former medicines of the mould prestige 1.2-1.5% of second, surplus is a filler, and is prepared into the powder of 20-60um.

Purpose of the present invention reaches with following typical scheme: the processing and manufacturing prescription is thiophanate methyl 5.0-5.5%, the mould prestige 1.2-1.4 of second, filler is single filler, selects in talcum powder, attapulgite, calcium carbonate, bauxite, kaolin, molecular sieve, white bad land.The filler 5-5.5% Jiameiling pulvis of 95-94.5% is used for sterilization, and the material footpath is with above-mentioned.

Purpose of the present invention also can reach by following scheme: the processing and manufacturing prescription is, thiophanate methyl 5.0-5.5, the mould prestige 1.2-1.4 of second, filler is a compounded mix, in talcum powder, attapulgite, kaolin, calcium carbonate, bauxite, white bad land, select two or more, typical in talcum powder 50-70%, attapulgite 30-45% adds low quantity of surfactant in the above-mentioned prescription.Single filler and composite filler all can use, but the general lower mould prestige of industrial goods second of softening point should adopt composite filler and corresponding other.

The processing method of above-mentioned three kinds of Jiameiling pulvis is seen: drying 2-3 hour below 60 ℃ with two kinds of former medicines earlier, make water content less than 2%, surfactants such as the filler of inorganic mineral such as talcum powder, attapulgite, lauryl sodium sulfate were 100 ℃ of oven dry 2-3 hour, make water content less than 2%, in proportion each component is pre-mixed, being crushed to fineness is the 300-350 order, mix with mixer again, obtain female powder of four times of concentration, female powder times is Jiameiling pulvis about 6.5% with corresponding fillers dilute to 4.

Characteristics of the present invention and effect such as following:

The particle size in tens of microns powder footpath can guarantee the free-running property and the suspending power of dust, the composite performance of thiophanate-methyl and the mould prestige of second has obvious synergistic effect, for example, total concentration is during 3.32ppm handles, the mould prestige actual concentrations of second only is 0.64ppm, but still have very strong bacteriostasis, the inhibition of botrytis cinerea contrast is shown to have only 3mm mycelia length.Enlarged antimicrobial spectrum in addition, experiment shows that mould, anthrax bacterium etc. is also had extraordinary inhibition, bactericidal effect.Table 1 provides Liaoning value and protects the table of comparisons that 6.5% Jiameiling superfine powder control graw mold of tomato is used at the station.In addition, various vegetables gray mold in the protection ground is had preventive effect preferably, also have following advantage.Powder deposition on the each several part crop leaf in booth reached about 77% when generally particle size 85% was by 325 orders.Also have 1 in addition) easy to operate, the control 0.07 hectare only needs 5-7 minute, improves 20 times of work efficiency than conventional spray-on process, alleviates peasant's labour intensity.2) saving agricultural chemicals expense uses.With soot technique control eliminating vegetable botrytis whole growing innerlich anwenden about 8 times, agricultural chemicals expense lacks medication about 7 times with about 150 yuan than the routine spraying, and mu is saved about 200 yuan of agricultural chemicals expense.3) airtight condition to the canopy chamber requires not strict.4) economic benefit is obvious, and by multiple spot investigation, soot technique improves 13.3-53 percentage point of preventive effect than spray-on process, saves agricultural chemicals and labour cost 100-200 unit for every mu, increase benefit 1920 yuan of average out to of mu.

The invention will be further described by the following examples:

Embodiment 1: adopt talcum powder formulated 6.5% and 6.2-7.5% Jiameiling pulvis.

(1) thiophanate methyl 5.25% (2) 5.00% (3) 6.00%

The mould prestige of second 1.25% 1.2% 1.5%

Talcum powder 94.5% 94.8% 92.5%

Host was dried 2-3 hour under 60 ℃ in convection oven, make former powder water content, in order to avoid thiophanate methyl decomposes (this moment, resolution ratio was 0.79%) less than 2%; The mould prestige of second is dried processing through coarse crushing to being narrower than 100 orders in advance again.Filler sieves, and screens out stone, gravel and other impurityes, and removes the iron filings of possibility with magnet, dries 2-3 hour down for 100 ℃ in convection oven, makes water content less than 2%.Above-mentioned component enters cracker then and pulverizes earlier through premixed, and the material of pulverizing is handled through mixer again, can get female powder.Female powder concentration is that 25% (active ingredient) each component is taken weight following (main amount part meter):

22.92 part 21.82 26.2 of thiophanate methyl (industrial goods)

5.24 part 5.04 6.28 of the mould prestige of second (industrial goods)

71.84 part 73.15 67.4 of talcum powder

The female powder effective ingredient of female powder completion of processing sampling analysis always is and the uniformity.At last female powder being released 4 times gets final product.

Female 100 parts in the powder (weight portion) of talcum pulvis

300 parts of talcum powder (325 order) (water content＜2%) fully mix in two kinds of materials addings of powder degree 25-35um mixer and promptly get the mould pulvis of 6.5%, 6.2%, 7.5% talcum first.

Embodiment 2: adopt mixed fillers prescription system 6.5% Jiameiling pulvis, select for use attapulgite and talcum powder to make mixed fillers, its heat storage stability can strengthen stability not as single talcum powder so add with lauryl sodium sulfate.The consumption of attapulgite is 4.6 times of host consumption, can make the basic deodorization of thiophanate methyl under this consumption, and can prevent that the mould prestige of second from luming because of the part is soft in crushing process.

Thiophanate methyl 5.25%

The mould prestige 1.25% of second

Attapulgite 32.5%

Lauryl sodium sulfate 0.10%

Talcum powder 60.80%

Its processing method of each component is the same with example 1.

Female powder concentration is 25% (effective ingredient), the each component amount of taking following (weight portion meter):

22.92 parts of thiophanate methyls (industrial goods) (a, i meter 21.0)

5.24 parts of the mould prestige of second (industrial goods) (a, i meter 5.0)

The basic sodium sulphate of 12 fans (industrial goods) 0.40 part

71.44 parts of attapulgites

At last the above-mentioned female powder dilution that mixes is got final product for 4 times:

The mixed fillers pulvis, the anticaustic amount of material following (weight portion):

100 parts in the female powder of mixed fillers

58.56 parts of attapulgites (325 order) (water content＜2%)

241.4 parts of talcum powder (325 order) (water content＜2%)

Fully mix in three kinds of materials adding mixers and promptly get 6.5% mixed fillers Jiameiling pulvis.6.2%, 7.5% is described with example 2.

Check: qualified products 325 order percent of pass are more than 85%, and heat endurance was stored for two weeks in 54 ± 2 ℃ of constant humidity cabinets, and cost-effectively resolution ratio＜5% all can reach the fungi-proofing effect of booth vegetable.

Test is handled	Before the medicine			After the medication 7 days for the first time			After the medication 7 days for the second time
	Before the medicine			After the medication 7 days for the first time			After the medication 7 days for the second time			Total fruit number	Sick fruit number	Diseased fruit rate	Sick fruit number	Diseased fruit rate	Preventive effect %	Sick fruit number	Diseased fruit rate	Preventive effect %
	6.5% Jiameiling ultrafine dust	??434	????2	????0.46	????4	????0.92	????60	????5	????1.15	Total fruit number	Sick fruit number	Diseased fruit rate	Sick fruit number	Diseased fruit rate	Preventive effect %	Sick fruit number	Diseased fruit rate	Preventive effect %	????88.1
But 800 times of 6.5% Jiameiling wet-millings	6.5% Jiameiling ultrafine dust	??434	????2	????0.46	????4	????0.92	????60	????5	????1.15	??447	????3	????0.67	????4	????0.89	????73.4	????5	????1.1	????88.3	????88.1
But 800 times of 6.5% Jiameiling wet-millings	800 times of 50% Sukeling wettable powders	??400	????2	????0.5	????6	????1.5	????40	????12	????3.0	??447	????3	????0.67	????4	????0.89	????73.4	????5	????1.1	????88.3	????57.1
Clear water (CK)	800 times of 50% Sukeling wettable powders	??400	????2	????0.5	????6	????1.5	????40	????12	????3.0	??200	????1	????0.5	????5	????2.5	?????-	????14	????7.0	?????-	????57.1

Claims

1. a Jiameiling pulvis that is used to prevent and treat multiple gray mold is characterized in that comprising thiophanate methyl 5.0-6.0%, two kinds of former medicines of the mould prestige 1.2-1.5% of second, and surplus is a filler, and is the powder of 20-60um.

2. by the described Jiameiling pulvis of claim 1, it is characterized in that filler is single filler, in talcum powder, attapulgite, calcium carbonate, bauxite, kaolin, molecular sieve, white bad land, select.

3. by the described Jiameiling pulvis of claim 1, it is characterized in that filler is a compounded mix, in talcum powder, attapulgite, kaolin, calcium carbonate, bauxite, white bad land, select two or more.

4. by the described Jiameiling pulvis of claim 3, it is characterized in that compounded mix is talcum powder 50-70%, attapulgite 30-45% adds low quantity of surfactant in the above-mentioned prescription.

5. by the described Jiameiling pulvis of claim 1, it is characterized in that prescription is thiophanate methyl 5.0-5.5%, the mould prestige 1.2-1.4% of second.

6. by the described Jiameiling pulvis of claim 1, it is characterized in that filler is to add 0.10% lauryl sodium sulfate surfactant in the compounded mix.