What are the effects of pesticides on flowers?

Effects of pesticides on flowers:

1. Petroleum emulsion: Petroleum emulsion is easy to cause drug damage to some peach varieties, and it is best to use it in the deciduous season.

2. Turpentine mixture: the use of turpentine mixture has obvious drug damage to persimmon in summer and adverse effects on citrus in spring and summer.

3. Stone-sulfur mixture: it is harmful to peach, plum, plum, pear and other Rosaceae plants. If stone-sulfur mixture is used on these plants, it is best to spray it in the deciduous season, not in the growing season or during the flowering and fruiting season. Stone-sulfur mixture has certain drug damage to kiwifruit, grape, cucumber and legume flowers.

4. Dimethoate and omethoate: it can cause obvious drug damage to ornamental plants of Rosaceae, such as plum blossom, cherry blossom, cherry, elm plum, pear, apricot, pear, etc.; dimethoate is also very harmful to shrimp flower and coral flower of petal family. If dimethoate is sprayed from June to October, it will often cause petals to wither and curl, leaves, inflorescences and twigs to fall off and lose their ornamental value. In addition, dimethoate also has a certain effect on melons.

5. Dichlorvos: obvious drug damage to ornamental plants such as plum blossom, cherry, peach, apricot, elm leaf plum, etc., usually other kinds of insecticides can be used. Dichlorvos also has varying degrees of drug damage to rhododendron, steamed bread willow, kiwifruit, Robinia pseudoacacia, walnut and melons. Care should be taken when using pesticides to control the pests of these plants.

6. Trichlorfon: it is harmful to Jinshuai varieties in cherry blossoms, plum blossoms and apples.

7. Fenitrothion: the use of fenitrothion to kill insects in high temperature season will not only cause serious drug damage to pomegranate, but also cause great harm to cruciferous flowers.

8. Chlordimeform: when using chlordimeform to control flower pests, it should be avoided on hibiscus and dahlia.

9. Topiramate: the use of topiramate should be avoided when controlling diseases and insect pests of kiwifruit.