Control of red wax bug, one of the pests of garden plants

China Garden Network News: Red wax borer host has a wide range, has been recorded red wax bug harm plants up to 35 families and 64 species, the main harm to citrus, jasmine, tea tree, oil tea, goosefoot catalpa, pomegranate, apricot, peach, Milan, wax plum, cycad, pine, fir, mulberry, pear tree, holly, rose, water mass flower, loquat, hawthorn, coarse leaf wood, chicken wood, moon, cherry and many other plants, is one of the main pests of garden plants in China, characterized by red dots on the branches of ornamental plants, Sticking to a branch and not moving harms the host plant.

Harmful symptoms

It uses adult insects and nymphs to gather in tree trunks, branches, shoots and fruits to suck sap hazards, resulting in poor growth of the affected plants, cracked branches, dryness, yellowing of leaves, early fall, fruit deformity and other phenomena, resulting in branches withering, and when severe, the whole plant dies. Red wax beetles are also like other shell insects, after the occurrence of insect infestation, the plant branches and leaves have honeydew, sticky, easy to induce coal pollution disease of garden plants, affecting their ornamentality.

Prevention and control measures

1. Strictly carry out plant quarantine.

Red wax bugs travel long distances and are carried mainly by seedlings, seeds and fruits. It is necessary to prevent insect plants from entering new garden areas in endemic areas. Propagating materials such as seedlings should be strictly quarantined, and once red wax ants and other shell insects are found, they must be eliminated immediately.

2. Implement the fitness cultivation of flowers and trees.

The first is to clear the "three ditches" (box ditch, waist ditch, and fence ditch) to keep the "three ditches" unobstructed; note timely and reasonable pruning to keep the tree body ventilated and transparent; the second is to strengthen the monitoring of the whole process of plant growth and development, including plant protection management, fertilization management, pruning management, etc., and do a good job in the whole process of prevention and control.

3. Use natural enemies to control red wax bugs.

The natural enemies of the red wax beetle mainly include jumping wasps (red wax beetle flat horn jumping wasps, short-tailed jumping wasps), relying on soft aphid wasps, etc. Breeding and utilizing these natural enemy insects is an effective way to control red wax beetles more thoroughly and labor-saving, and can be vigorously promoted.

4. Carry out pharmaceutical prevention and treatment in a timely manner.

After the flow of sap in early spring, the red wax began to feed, and after the female adults laid their eggs, after a certain number of days, they could hatch a movable insect without a bug shell, called hatching larvae, they crawled on the host plant, found a suitable parasitic part, and then stabbed the mouthpart into the flower and wood plant, sucked the sap, and began to fix life. Therefore, the active and harmful periods of the hatching larvae are the best and critical periods for control. At this time, the larvae have no wax shell protection, are sensitive to drugs, save time and effort in prevention and control, and have good effect. Generally available pesticides are: iminothion 800 to 1000 times liquid, dichlorvos 1000 to 1500 times liquid spray red wax bug hazard site, or 40% culling emulsion 1000 times liquid, or 25% insecticide net emulsion 1000 times liquid spray prevention and control, or with pine resin compound control (pine resin mixture can effectively penetrate waxworm, good effect). The control concentration can be thicker in winter and rarer in summer (to prevent high temperature in summer from causing drug damage). If the number of flowers and trees is not large, it can be manually brushed or scraped, or it can be combined with pruning, and the cut branches with insects are centrally treated and burned.