How to control Lagerstroemia indica

It is one of the common pests of Lagerstroemia indica. Morphological characteristics: the adult body length is 35 mm to 40 mm, and the wing spread is about122 mm; There are dark white hairs on the body surface, and the wings are pink-green. The front edge of the front wing runs through the chest and is purple-brown. There are eye-shaped markings in the center of the wing, and the tail-shaped protrusion of the rear wing is 40 mm long. Oval slightly flat, 2 mm long, taupe. Larvae can be as long as 80 mm, yellow-green, with tumor-like protrusions on the body segments, four in the middle and back chest, 65,438+0 on the back of eight abdominal segments, and long brown hair on the tumor segments, which is non-toxic. Pupa is 45 mm to 50 mm long, reddish-brown, with 1 spot on forehead. Cocoons are ovoid, grayish yellow or grayish brown. The damage is characterized by larvae eating leaves. Larvae eat leaves into notches or holes, and when they are a little bigger, they eat up the whole leaf, leaving only petioles or thick veins. Control method 1. The overwintering pupa of the green-tailed silkworm moth has a large amount of horticultural control, which is convenient for manual killing; Older larvae can be as long as 80 mm and can be captured artificially. 2. In chemical control, try to use the medicine before the 3rd instar, and spray 800 times of 50% acetaminophen EC, 1000 times of 80% dichlorvos EC, 1000 times of 90% trichlorfon EC or 3,000 times of 2.5% deltamethrin EC.