What are the common diseases and insect pests in blueberry cultivation

What are the common diseases and insect pests in blueberry cultivation? The main diseases and insect pests of blueberry are "stem borer", "beetle" larvae and grubs, as well as "leaf chlorosis", "leaf blight", "stiff fruit disease", "leaf-eating diamondback moth" and other common diseases and insect pests. If the prevention and control is good, it can be avoided. The first principle of prevention and control is to adhere to the principle of giving priority to prevention and comprehensive control to realize the ecological conditions of natural agricultural production as much as possible, and the second is to adopt advanced pesticide application technology to reduce the amount of pesticides as much as possible. it is appropriate to advocate the selection of biological pesticides and chemical pesticides with high efficiency, low toxicity and low residue performance and to use drugs alternately scientifically and rationally. Third, the use of chemical pesticides should be strictly in accordance with the drug use standards of GB 4285 and GB 8321. The control method is from the middle to the second ten days of April to the first and middle of May. The mixture of 50% carbendazim 400-1500 times and 80% dichlorvos EC 1200-1500 times can be used for 2 times, with an interval of 10-15 days. From mid to late August to October, 50% carbendazim 400 × 1200 times and 80% dichlorvos EC 1000 × 1200 times or 2.5% deltamethrin EC 1000 × 1200 times were mixed for 1 to 2 times, and corresponding measures should be taken according to the degree of diseases and insect pests in the field. In late November, combined with winter pruning, remove weeds, eliminate overwintering diseases and insects, and cut off diseased branches, insect branches and so on. In December, we should combine deep winter shears, turn the soil deep into 20cm, and pay attention to the elimination of pests that survive the winter in the soil. Note: when using chemical control measures, it is necessary to adhere to the principle of not using drugs 20 days before blueberry ripening and before the end of fruit harvest. In particular, highly toxic pesticides should not be used. If needed, consider that different pesticides should be used alternately. Blueberry fruit is rich in nutrients, but there must be no residue of chemical fertilizers or pesticides in the fruit body. Otherwise, the fruit will lose its due commodity value. It not only directly affects export sales, but also directly reduces the value of economic benefits. Therefore, the technical management and protection methods of eco-agriculture should be considered as far as possible when adopting prevention and control methods. Click to get more blueberry planting techniques click to get more fruit planting techniques