In the process of growth, peony is vulnerable to black spot disease, white peony disease, rust, and pests and diseases such as cockroaches, mites, and spider mites, and must be strengthened.

Black spot

Spraying 65% dexamethasone WP 500 times at the beginning of the disease has a certain effect; After the onset of the disease, it is sprayed once every 7 to 10 days before the onset of an equal amount of Bordeaux mixture until the autumn, although Can not cure this disease, but can reduce the symptoms; concentrated burning of dead branches, diseased branches, etc.; with 1? 100 formalin solution of soil disinfection; 3 to 4 years will not continue.

White tinea

Soil replacement or disinfection; the diseased plants are cut off at the beginning of the disease and burned in a concentrated manner. The surrounding soil of the diseased plants is watered with mercury, lime, and water (1:1.5:1500); regular spraying of 50% carbendazim can be performed before the onset of disease. Wet powder 500 times or 50% thiophanate wettable powder 500 times.

Rust

Spray 65% ​​zeocin zinc wettable powder 500 times liquid or lime sulfur 0.3 to 0.4 degree liquid regularly, spray once every 10 to 15 days, spray 3 to 4 times continuously, can obtain certain effect.

Grub

In the early spring, 1% of trichlorfon solution or 20 to 30 grams of carbofuran per square meter was used to irrigate the soil; the land was deep-swept and the overwintered eggs were frozen.

The mites eliminate overwintering weeds; when the hazards occur, spray 40% dimethoate emulsion 3000 times.

Red spider

Weeding, composting, eradication of overwintering eggs, reduction of insect pests in early stages; spraying of 20% triclosan wettable powder 1000 times or 40% dicofol emulsion 2000 times; spraying of Bami 0.2 to 0.3 degrees lime sulfur in summer 6 to 7 days after spraying, it needs to be sprayed once again, and spray water to clean the blades in time

Ultrasonic Cleaners

Mini Ultrasonic Cleaner,Diy Ultrasonic Cleaner,Skymen Ultrasonic Cleaner,Best Ultrasonic Cleaner

Dongguan Jinwang Ultrasonic Equipment Co.,Ltd , https://www.jwultrasonic.com