There are many kinds of insect pests on the catalpa tree. The common ones are the Perry bug, the catalpa moth, the Paulownia beetle, the white kidney nocturnal moth, the moth, the moth, the ginkgo silkworm moth, the green leafhopper, etc.
Different pest control methods should be applied naturally. If the catalpa tree is infected with this pest, it can spray 20% Kangfu duonong solvent 3000 times in the adult stage, which can effectively control the pest.
When the stem borer occurs, 10% imidacloprid WP 1000 times can be sprayed for control.
When this kind of insect pest occurs, it can be controlled in its larval stage by spraying 3% hypertonic phenoxycarb emulsion pesticide.
When this kind of pest happens, spray 48% Bacillus thuringiensis in larval stage to kill it.
The moth can be killed by spraying 20% kangfuduonong 3000 times solvent in its larval stage.
When the moth is serious, it can be killed by spraying 500 times of BT emulsion.
If the plant is infected with this insect pest, the control should be carried out in the nymph stage. You can choose to spray 1000 times of 25% chlorpyrine wettable particles or 3500 times of 48% lesbon emulsion to kill it.
The larva of Catalpa borer will eat the young shoots and harm the branches. The control method is to cut off the branches harmed by the pests and then destroy them. When the adults appear, they can spray trichlorfon or marathon 1000 times liquid to poison the adults and the first hatched larva..
