2013年11月1日星期五

Pollution safe use of pesticides in tea production technology

Pollution-free tea garden pest control , to use modern concept of sustainable development of agriculture , starting from the tea garden ecosystem , integrated application of various control measures , promotion of sound public control techniques . You must use agricultural control, prevention and treatment programs to be well in advance , the preferred type of biological pesticides and environmental compatibility of pesticides, the rational use of pollution-free tea production procedures recommended by the chemical pesticides, and earnestly control records.
Sound control measures: pollution-free tea harmless pest control measures have public agricultural control , physical control , biological control . Sound public control measures will not cause environmental pollution, will not bring the problem of pesticide residues , therefore, should be given priority .
The use of biological pesticides or pesticide environmental compatibility type : commercialization of biological agents : eg Bacillus thuringiensis BT preparations, Ectropis virus preparations, tea caterpillar virus preparations, whitefly fungi . Botanical pesticides such as Toosendanin , matrine , nicotine , rotenone , pyrethrin and so on. Half the amount of lime mineral type pesticides such as Bordeaux mixture . They are the first choice for future tea pest control agents .
Rational use of chemical pesticides : For the control object , select the appropriate pesticides and formulations. Strict accordance with the provisions of the dose, frequency , method of administration , application suitable period , safety interval , and precautions applying pesticides should be a multi- drug treatment or a reasonable mix of pesticides , prohibited the use of prohibited pesticides.
Prevention and control targets, home garden sprayer spraying suitable period : pollution-free tea production technology point of the main indicators of pest control , control period described. Chemical control , should give serious consideration .
Pesticide varieties : There can be restricted to the use of efficient , low toxicity , low-residue pesticides . Prohibit the use of limited DDT, BHC , parathion ( 1605 ) , methyl parathion ( methyl 1605 ) , methamidophos , acephate , omethoate , sodium pentachlorophenol , chlordimeform , g Budweiser, dicofol , isocarbophos , cyhalothrin , to Fu Ling and mixing agents highly toxic , high residue pesticides.
Application methods : conventional agricultural sprayers, choose low-capacity spray. Punta tea bushes sprayed surface sweep ; tea leaves to take the lower lateral low-volume knapsack sprayer spraying pests . The amount of pesticide safety interval : in strict accordance with GB4285, GB. T8321 into ( Appendix C of pollution-free tea can be used pesticides and their safety standards ) is required to control the amount of pesticide safety interval .
Non- fossil sources of pesticide use production season : such as: lime half the amount of Bordeaux mixture and so on.

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