There are many advantages associated with the use of pesticides, but it does not mean that all pesticides can be mixed and that not all pesticides need to be mixed. Mixed use is strictly required, and it must be judged based on the chemical and physical properties of the drug itself, as well as the laws of occurrence of tobacco pests and weeds and the life history, etc., to judge whether they can be mixed or need to be mixed. Whether or not various pesticides can be mixed with each other generally considers the following issues. (1) To clarify the purpose of the mixed use of pesticides. Mixed use of pesticides should mainly achieve the purpose of increasing efficiency, concurrent cure, and expanding the scope of prevention and control. If it is not possible to achieve the above objectives, it should not be mixed, otherwise it will cause waste, will not receive the desired results, and even cause phytotoxicity. (2) No adverse chemical and physical changes should occur after mixing the pesticides. If the medicament is not decomposed after mixing, the emulsifiable concentrate will not be destroyed, and the suspension will not produce flocculation or a large amount of precipitate. For example, dimethoate, dichlorvos, malathion, chlorimuron, carbaryl, mixed aldicarb, insecticides and other pesticides are neutral pesticides that can be mixed with each other. Many insecticides, bactericides, and herbicides encounter alkaline substances that quickly decompose and fail. All agents that are easily decomposed under alkaline conditions cannot be mixed with alkaline substances. (3) Mixing and mixing the liquid medicine should not cause harm to the crops. If there is a phytotoxicity, they cannot be mixed with each other. (4) After the drug is mixed, the efficacy of the mixed drug solution should be improved, at least, the efficacy should not be reduced, that is, the compounding effect must be increased. (5) After the agents are mixed, the acute toxicity of the mixture can not be generally higher than their original toxicity, that is to say, they cannot be poisoned. The economic effects or problems caused by the mixed use of pesticides can hardly be inferred or judged from the physical and chemical properties of the pesticides alone. At the same time, the physiological interactions between the pesticides and weeds are also very complicated. Many effective mixed-use formulas have been created and summarized by the broad masses of people and plant protection science and technology personnel over the years. Therefore, whether or not new pesticides can be mixed with each other, it is best to do indoor tests first, then do community tests, and then determine whether they can be used in large areas.
Bee Pollen comes from
nature, is the bee from the flowers (nectar plants and pollen plants)
flowers collected in the pollen grains, and joined the special glandular
secretions (nectar and saliva) mixed into an irregular Flat round shape. Bee
pollen has a unique natural health care and medical and cosmetic value,
is more and more people know, is a high-protein low-fat nutritional
health food, known as "all-round nutrition food" "concentrated natural
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