According to the plant protection policy of “prevention-oriented, comprehensive prevention and controlâ€, chemical control, biological control, physical control, mechanical control, and other prevention and control methods should be applied according to local conditions. Secondly, selective pesticides should be adopted, and comprehensive prevention and control should be carried out depending on the occurrence trend of pests and diseases. The use of highly toxic and high-residue pesticides is strictly prohibited.
1. Citrus Huanglongbing: Also known as yellow tip disease is a devastating disease in the citrus production areas in southern China, and is mainly transmitted by citrus wood clams. Control methods: 1 Establish a disease-free nursery and cultivate disease-free seedlings. 2 timely excavate diseased trees and burn them together. 3 control vector insects citrus Hibiscus, regular use of 25% imidacloprid 50 g of water 45 kg or 100 times Ye Yan powder spray control.
2, citrus scab disease: mainly damage young leaves, shoots, flowers and young fruit, often deformed leaves and young fruit, causing defoliation, fruit drop, shoot growth is not good, resulting in decreased yield and fruit quality. Control methods: 1 strengthen the cultivation and management: timely removal of weeds in orchards to reduce pathogens. 2 drug control: 50% of the use of 50% Tu Xi special 500-800 times or 75% chlorothalonil.
3, red spider: mainly damage leaves, fruits. The leaves of the victims were many gray spots, and they lost their luster, causing serious defoliation and fruit drop. This worm breeds quickly and is highly resistant to stress. Control methods: (1) Protection and utilization of natural enemies: Full use of predatory mites and ladybugs on the control of red spider populations significantly increased. 2 chemical control: Mu can use 73% Kezi 1000-1500 times liquid
Or 1.8% abamectin 2500-3000 times liquid acaricide spray control.
4. Leaf leaf moths: Citrus leaf leaf miners are the main pests during young shoots and are mainly responsible for summer shoots, autumn shoots or winter shoot shoots. The larvae mainly infiltrate the leaves of the young leaves to feed on the leaves and form curved tunnels. The damaged leaves are severely curled and the growth of new shoots is affected. Wounds caused by damage can cause ulcer disease and anthrax. Control methods: In the young shoots 2-3 cm long when the spraying began 7-10 days once, continuous 2-3 times. Mu using 2.5% Kung Fu 2000-2500 times liquid or 5% stuck powder 1500-2000 times spray control.
5, locusts: locusts with adults, nymphs clustered in shoots, shoots sucking juice on the shoots, wounded young leaves curled into malformations. Aphid secretions cause soot, causing black foliage, and severely affect photosynthesis and tree vigor. Control methods: The use of 40% dimethoate 1000-1500 times liquid or osmium net 1000-1500 times liquid spray control.
6. Scale insects: Let the branches, leaves, and fruits that damage the citrus cause branches to dry, leaves dry, and induce soot, weakening the tree potential. Control methods: 1 In the winter, severely damaged branches and leaves were completely cut off, and then the source of overwintering females was sprayed with an insecticide. In the middle and late of 24th month, two consecutive sprayings were carried out, spraying once every 10 days to prevent and control the first generation nymphs, and 50% of Dafeng 800-1000 times liquid or 800-1000 times of imidacloprid spray was used for control.
Active Pharmaceutical Ingredients
Active Pharmaceutical Ingredients(API) refer to the raw materials used in the production of various preparations. They are the effective ingredients in the preparations. They are various powders, crystals, extracts, etc., prepared by chemical synthesis, plant extraction or biotechnology, but Substances that the patient cannot take directly. API is intended to be used in any substance or mixture of substances in the manufacture of pharmaceuticals, and when used in pharmaceuticals, it becomes an active ingredient of the pharmaceuticals. Such substances have pharmacological activity or other direct effects in the diagnosis, treatment, symptom relief, treatment or prevention of diseases, or can affect the function or structure of the body. According to its source, active pharmaceutical ingredients are divided into two categories: synthetic chemical active Pharmaceutical ingredients and natural chemical active Pharmaceutical ingredients.
Chromium Picolinate,Tianeptine,6-Paradol,Aminobutyric acid,acetylcysteine,L-Carnosine
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