Prevent pests and diseases in orchards in winter

Prevention and treatment of perforation disease: spray 3~5 Baume lime sulfur mixture or 1:1:100 Bordeaux mixture before the fruit tree germinates. However, avoid spraying Bordeaux mixture during the growing season to avoid phytotoxicity. In the early stage of the disease, spraying 65% Zinc powder 500 times solution 1 to 2 times, the control effect is better. Zinc sulfate lime liquid has a good effect on the prevention and treatment of bacterial perforation. Its formula is 0.5 kg of zinc sulfate, 2 kg of slaked lime, and 170 kg of water.

Prevention and treatment of anthracnose: spray 3~5 Baume Lithium Sulfur mixture once before germination; spray 65% ​​thiram or 600 times solution of thiram zinc after germination, spray once every 15 days, spray 2 times ~3 times; after falling flowers, use 800 times solution of sterilization or thiophanate wettable powder 500 times solution for 3 to 4 times, among which spraying is the most important in the rainy season from April to May.

Prevention and treatment of aphids: spray 3~5 Baume lime sulfur mixture when clearing the garden in winter to kill the eggs of overwintering insects. And conscientiously protect natural enemies, such as wild flies, ladybirds, and clams.

Prevention and treatment of a little leafhopper: When the overwintering adults move back to the orchard, you can choose to spray with 50% pine moth EC 800 times liquid or 2.5% Dijie 1500 times liquid.

The prevention and treatment of mulberry scales: spray 2~3 Baume lime sulfur mixture to eliminate overwintering female adults. At the same time, manual control can be carried out, such as using a hard brush to remove scale insects on the branches; protecting natural enemies, such as red-spotted ladybug, Japanese square head beetle, etc.; doing a good job in winter clearing work, combined with pruning and cutting off The diseased and insect branches were burnt together; the trunk was whitened with a whitening agent with 5.0 kg of quicklime, 0.5 kg of sulfur, and 20 kg of water.

Prevention and control of fruit borer: Do a good job in winter clearing, eliminate the source of overwintering insects, timely deal with the overwintering hosts of fruit borer, such as corn, sunflower and other crops, and burn them together. Use black light and sweet and sour liquid to trap and kill adults. In the first and second generations, spraying 50% Phytosaccharin 1000 times liquid or 1500 times liquid of Gaolubao, insect killer etc. at the peak of egg laying of the first and second generations has a good control effect on eggs, larvae and adults.

Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of third parties are involved, please inform this website for handling. phone

Trolley Ultrasound Scanner

Trolley Ultrasound Scanner,Color Doppler Ultrasound,Doppler Ultrasound Diagnostic Instrument,Trolley Full Digital Ultrasound Scanner

Mianyang United Ultrasound Electronics Co., Ltd , https://www.uniultrasonic.com

Posted on