Common insect pests of catalpa and their control

Common insect pests of catalpa

There are many types of insect pests that occur on catalpa trees. The most common ones include the amber bug, catalpa borer, paulownia tortoise shell, white kidney armyworm, gypsy moth, frost moth, ginkgo silkworm moth, and green leafhopper.

Prevention and control methods of main insect pests of catalpa ovata

Amber bug

Different pests naturally require different prevention and control methods. If the catalpa tree is infected with pests such as the amber bug, you can spray 3000 times the diluted 20% Kangfuduo concentrated soluble solution during the adult stage , which can effectively control the pests.

Catalpa fasciatus

When the catalpa borer occurs, spray 1000 times diluted 10% imidacloprid wettable powder for prevention and control.

Paulownia tortoise shell

When this pest occurs, it can be controlled in its larval stage by spraying 3% hypertonic fenoxycarb emulsifiable concentrate pesticide to kill it.

Spodoptera exigua

When this type of pest occurs, spray 48% Bacillus thuringiensis during the larval stage to kill it.

Tussopus spp

When the tussock moth occurs, you can spray 3000 times diluted 20% Kangfuduo concentrated soluble substance to kill it during its larval stage .

Frost moth

When the frost moth infestation is serious, you can spray 500 times diluted Bt emulsion to kill it.

Green leafhopper

If the plant is infected with pests such as the green leafhopper, prevention and control must be carried out in the nymph stage. You can choose to spray 1000 times diluted 25% cypermethrin wettable granules or 3500 times diluted 48% chlorpyrifos emulsifiable concentrate to kill the insects.

Catalpa borer

The larvae of the catalpa borer will eat tender shoots and damage branches. The prevention and control method is to cut off the branches damaged by the pest and then destroy them. When the adult insects appear, you can spray 1000 times dilution of trichlorfon or malathion to poison the adults and the first hatched larvae.