Common pesticide use contraindications

Insecticide

    Pesticides containing triazophos should not be used on fruit trees or sugar cane; phoxim should be avoided in the growth stage of watermelon, radish and leafy seedlings (even in the growing season) due to light decomposition, and should be used in other crops. Avoid use under strong light conditions; insecticides containing malathion may cause phytotoxicity to melons, pears, peaches, grapes, legumes and cruciferous crops, tomato seedling crops if used at high concentrations; Dimethoate is susceptible to phytotoxicity when used in some varieties of sorghum, tobacco and jujube, peach, plum, apricot, cherry, citrus, and olive trees; trichlorfon, dichlorvos, dibromophosphonate, etc. on corn, beans, The seedlings of melons are sensitive and have phytotoxicity to sorghum; the sulphate is not suitable for use on fruit trees, vegetables and mulberry trees. It is easy to produce deciduous fruit on peach trees; insecticides and insecticides are in cotton, beans and potatoes. It is easy to produce phytotoxicity when used, and it is easy to cause phytotoxicity when used in cruciferous crops under high temperature and high humidity; insecticides are also used in citrus, and should be used with caution.

Acaricide

    Frequent use of dicofol acaricides, chronic phytotoxicity to citrus, will lead to a large number of leaves (chlorine poisoning) in winter, eggplant is particularly sensitive to it; acaricide containing triazolyl tin is easy to cause phytotoxicity during the shoot tip; The use of motor oil and diesel acaricide in the fruit growth period will cause "flower peel" phytotoxicity; high content of acetylene pesticides under high humidity conditions will cause phytotoxicity to citrus young tissues.

Fungicide

Triazole fungicides should avoid long-term use in the vegetative growth period of melons. In the flowering period of Daqing jujube, malformed fruit will be produced, and should not be used; copper preparations should not be used on cabbage; inorganic copper preparations should be used in fruit trees and young fruits. It is forbidden to use, and it should be used with caution in high temperature and high humidity. At the same time, it can not be used indiscriminately. The high content of chlorothalonil ingredient fungicide should not be used on persimmon trees or pear trees. The arsenic preparations should be used in the persimmon growth period and melons. Produce phytotoxicity and avoid using it on these crops.