Powdery beetle: characteristics and harmful diseases of powdery beetle

There are many kinds of scale beetles. Do you know powder scale insects? What is its harmful habit? What is the shape? Let's take a look.

Harmful habits: it can occur on Christmas red all the year round, especially in poorly ventilated facilities. Many worms gather and grow on the back of leaves, secrete white wax filaments, and induce coal mildew, which is the most severe of several harmful insects. Host plants include lychee, tangerine, coffee, mulberry, tea, coconut, cotton, hibiscus, ivy, laurel, oleander, tobacco, sugar cane and some Solanaceae.

Shape:

Nymph: long ovate, tail tip is small, flat, head, chest and abdomen heal, abdominal segment is obvious, body length is about 0.4 mm, light yellow, feet and antennae are obvious, and there are a pair of long hairs on the buttocks.

Adult: the shape of the female adult is similar to that of the nymph, with a body length of about 4.5 mm, covered with a layer of white wax powder, the male has a pupa stage, and the pupa is light brown, with obvious body segments and winged buds, hidden in white cotton floc secretions. Male adult head, chest black, abdomen brown, slender body, ca. 1.1 mm, winged.