Copper sulphate meta-tolyl-N-methylcarbamate (MTMC) wetting powder
The present invention is the harmful shellfish that crops are killed in a kind of confession---the highly effective pesticide of snail.
According to the interrelated data retrieval, also there the agricultural chemicals of the control snail identical at present with prescription of the present invention---copper sulphate meta-tolyl-N-methylcarbamate (MTMC) wetting powder (the gram snail is clean).The agricultural chemicals of control snail has number of patent application at present: 93110547.1, denomination of invention is that this medicine of " Miewojing " for killing snail is mixed and formed by cupric sulfate pentahydrate, sodium carbonate or cupric sulfate pentahydrate, sodium bicarbonate, to the snail on the crops mainly is to refuse the effect of keeping away, the shellfish effect of going out is on the low side, and the medication shellfish effect of going out for 1 time has only 25-30%.Domestic still have except that agricultural chemicals such as the special female powder of snail, mixed by compositions such as the red former medicine of furans, the attractant methaldehydes and form, and need admix an amount of bait such as corn flour during use, and snail is poisoned to death after getting and having eaten this poison bait.But 1 accumulative total of dispenser is trapped and killed the 13-18% that snail quantity only accounts for field snail total number.Especially after the crop growth middle and later periods, snail climbed on the plant, or native face meets heavy rain after dispenser or the dispenser when dry and washes away, and then control efficiency is lower.The poison bait medicament is limited to before the crop sowing or use seedling stage, because poison bait is sprinkled upon in the farmland, the natural enemy of crop pests and poultry (chicken and duck) etc. is all had certain toxic action.
The objective of the invention is to overcome the unfavorable weak point of existing control snail agricultural chemicals effect, provide a kind of good, the crops blade is had the agricultural chemicals copper sulphate meta-tolyl-N-methylcarbamate (MTMC) wetting powder of killing snail (the gram snail is clean) of good protective effect the snail killing effect.
The present invention is achieved through the following technical solutions, and the gram snail is only by cupric sulfate pentahydrate (CuSO
45H
2O), natrium carbonicum calcinatum (Na
2CO
3), meta-tolyl-N-methylcarbamate (MTMC) (C
9H
11NO
2) mix and form, the content of cupric sulfate pentahydrate is 77.7-80.2% by weight, and the content of meta-tolyl-N-methylcarbamate (MTMC) is 0.3-0.7%, and all the other content are natrium carbonicum calcinatum.After the weighing, cupric sulfate pentahydrate need be made drying and crushing earlier and handle, and makes its water 8.5-11.5% that loses the chemical combination attitude according to the above ratio, the recombinant packing.Copper sulphate meta-tolyl-N-methylcarbamate (MTMC) wetting powder (the gram snail is clean) is 1: 154 with the ratio of water, is available manual sprayer after fully dissolving stirs evenly, the control of spraying on the crops that have snail to cause harm.
The present invention compares with the existing snail agricultural chemicals of killing, and has the shellfish rate height that goes out, refuses that the power of keeping away is strong, the drug effect phase long, can stimulate the double advantage of controlling some damage by disease and insect of plant growth, and the snail rate of going out when crops are sprayed 1 time reaches 55-65%, adds dimethyl phenyl carbamate (C than " Miewojing " for killing snail
11H
13NO
2) add 5 milliliters of high 18.5-23.8 percentage points in every 10Kg water, than the high 25-30.2 of " Miewojing " for killing snail percentage point, than removing 33-40 percentage point of snail extra-high-speed.It is very strong that copper sulphate meta-tolyl-N-methylcarbamate (MTMC) wetting powder (gram snail clean) is refused the shellfish rate, do not have snail substantially on the plant in the dispenser 10 days and cause harm, and the drug effect phase reaches 17-23 days, than the long 3-5 of " Miewojing " for killing snail days, than except that long 11-14 days snail top grade poison bait pesticide efficacy phase.Copper sulphate meta-tolyl-N-methylcarbamate (MTMC) wetting powder (gram snail clean) is to crops keep a full stand of seedings Bao Ye and effect of increasing production highly significant, for example during every mu of snail of soybean crops 4.6 ten thousand head height density, average sprinkling copper sulphate meta-tolyl-N-methylcarbamate (MTMC) wetting powder (the gram snail is clean) 2.5-3 time, the snail rate 84.1-90.5% that goes down, the leaf effect of keeping a full stand of seedings 88.5-92.7%, volume increase 6-7 becomes, and many reaches more than 1 times, average every mu of volume increase soybean 45-50Kg, the control investment reaches about 1: 7 with the income ratio.Copper sulphate meta-tolyl-N-methylcarbamate (MTMC) wetting powder (the gram snail is clean) harm reduction effect of increasing production extremely significantly is better than removing the snail spy, also is better than agricultural chemicals such as " Miewojing " for killing snail.
The invention will be further described below in conjunction with embodiment: embodiment 1 prescription is: cupric sulfate pentahydrate content is 80.2%, carbonate content is 19.1%, meta-tolyl-N-methylcarbamate (MTMC) content is 0.7%.Cupric sulfate pentahydrate is made drying and crushing and is handled after the weighing, make its water 8.5-11.5% that loses the chemical combination attitude after, in putting into water, require agitate water solution again while adding with 1: 154 ratio of water, treat to be sprayed at after whole the dissolving on the crop that snail causes harm; Embodiment 2 prescription is: cupric sulfate pentahydrate content is 78.9%, carbonate content is 20.6%, meta-tolyl-N-methylcarbamate (MTMC) content is 0.5%, and all the other are with embodiment 1; Embodiment 3 prescription is: cupric sulfate pentahydrate content is 77.7%, carbonate content is 22.0%, meta-tolyl-N-methylcarbamate (MTMC) content is 0.3%, and all the other are with embodiment 1.By the result of the test of above-mentioned 3 kinds of prescriptions, these 3 kinds of prescriptions to snail to refuse the ability of keeping away all very strong, do not have significant difference therebetween.The shellfish rate of going out when spraying 1 time, first kind of prescription is that 64.5%, the second kind of prescription is 60.2%, the third prescription is 55.6%.
The gram snail be plastic bag sealing inner wrapping (vacuum packaging of tin platinum is better) only, average 65 grams of every bag net weight, after converting the water ratio in accordance with regulations and fully shaking up with medicine liquid spray to the plant leaf tow sides, finished medicines is put the preservation of dry place.