Fortune Telling Collection - Ziwei fortune-telling - There is a layer of white spots on the crape myrtle tree, which is red when squeezed out of the white spots. What's the disease? How is the treatment?
There is a layer of white spots on the crape myrtle tree, which is red when squeezed out of the white spots. What's the disease? How is the treatment?
Female adults are flat, oval, about 2-3 mm long, dark purple, and covered with a layer of white velvet shell when they mature. The male adult is about 0.3 mm long, and its wings spread about 1 mm, which is purple. Oval, purplish red, about 0.25 mm long. Nymphs are oval, purplish red and have spines around their bodies. The male pupa is purple-brown, oval, and wrapped in a bag-like velvet white cocoon. In winter, pruning should be combined to remove branches with serious pests and overwintering insects.
Spraying Pomei 3-5 degree sulfur mixture before germination in early spring can kill overwintering nymphs. In the growing season of seedlings, if we want to use this pesticide in the incubation period, we can choose to spray 1500 times of 40% Zygorskite EC, 1200 times of 48% chlorpyrifos EC (Lesburn), or 1000 times of 40% omethoate EC, or
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