Red pomelo grapefruit pollution-free production of pest control technology principles.
Disposable Medical Forceps,Medical Plastic Forceps,Disposable Plastic Clips,Disposable Cotton Tweezers Luck Medical Consumables Co.,LIMITED , https://www.luckmedical.com Pest prevention and control of pollution-free fruit production emphasizes the implementation of the principle of “prevention-oriented, comprehensive prevention and controlâ€, and adopts methods such as agriculture, chemistry, and biology in a timely manner to control pests below the economic victimization level. To achieve the purpose of producing pollution-free fruit.
1, pay attention to the application of agricultural control measures
(1) Timely clearance Most orchard pests in orchards overwinter in dead branches, deciduous, bark and weeds, so clearing the orchard can effectively control the source of pests and diseases. The specific method may be determined according to specific circumstances. For example, weeds and leaves are deeply buried, and the rough skin and skin of the fruit trees are carefully scraped, and plastic sheets are laid under the trees so as to concentrate deeply or cut off the diseased branches and fruit of the fruit trees. Branches, and removed from the orchard for burning and so on.
(2) Emphasis on the selection of high-resistance and good-breeding varieties The previous fruit production mainly focused on high-quality and high-yield, but not enough on the varieties' resistance. With the introduction of green foods, the varieties themselves are required to have strong resistance so as to reduce the chance of diseases and insect pests and other disasters. Therefore, selection of disease-resistant, drought-resistant and cold-resistant fruit tree improved varieties is an indispensable measure for the production of pollution-free fruits. one.
2. Reasonable use of chemical pesticides In accordance with the requirements of the National Guidelines for the Production of Pesticides for the Production of Green Food, it is forbidden to use chemical pesticides that are “highly toxic, high residue, carcinogenic, teratogenic, and mutagenic†and restrict the use of the pesticides. Killing, high resistance to pesticides, strict control of the use of hormone drugs, the main choice of the use of lime sulfur, Bordeaux mixture, thiophanate-methyl and other highly effective low-toxicity, low residual fungicides. In the use of pesticides should pay attention to the right medicine, appropriate medication. In addition, spray methods should be improved, such as the use of electrostatic spray technology. The method has uniform spraying, strong liquid adhesion, obvious effect of killing diseases and insect pests, and can effectively reduce the amount of pesticides used and the number of times of use.
3. Actively use biological control measures
(1) Utilization of natural enemies The natural enemies of farmland in China are very rich and should be protected and utilized. For example, planting nectar crops and pastures in orchards will help improve the natural enemies' living environment, increase their food sources, and increase the number of populations so as to control pests. For the control of natural enemies can be artificial breeding, and timely release. When there are alien pests, consider the introduction of natural enemies for prevention and control.
(2) Utilization of Microbial Pesticides Microbial pesticides have developed rapidly in recent years. Microbial pesticides that can be used in orchard control include: polyhedral virus (NPV), granulocyte virus (GV), Bacillus thuringiensis, Beauveria bassiana, and Metarhizium anisopliae Wait. Through the implementation of integrated pest control measures, high-quality fruit can reach more than 85%.