What are the control methods for plum fruit moths?

Plum trees suffer from pests and diseases during their growth, and the most harmful among them is the fruit moth, a pest of the order Lepidoptera, family Tortricidae. The damage is mainly caused by the larvae, which bore into the fruit and feed inside. After the fruit is damaged, gum oozes from the wormhole, preventing the fruit from developing normally, and over time, frass gradually is expelled from the hole, very easily causing the fruit to drop. So how should the fruit moth be controlled? Let's take a look together.

1. Winter orchard cleanup

Before winter sets in at the orchard, winter cleanup should be carried out in good time so the trees can overwinter safely. The cleanup work must be thorough: gather diseased branches, diseased leaves and diseased fruit on the ground and burn or bury them deeply in a centralized way. Diseased branches, diseased leaves and rotten fruit on the trees should also be pruned off and disposed of together. Then earth up, apply fertilizer and plow the soil deeply to eliminate overwintering pests and eggs in the soil. Finally, spray the whole orchard with cleanup agents to thoroughly sterilize and kill pests. This can reduce the severity of damage from fruit moths and other pests and diseases.

2. Control under the tree

Before the overwintering adults emerge from the soil, earth up around the tree with sterilized, disinfected soil, forming a mound about 10 cm thick. After earthing up, tread it firm so the emerging adults cannot come out of the soil in time. In addition, land preparation, weeding and bark scraping can also be used to eliminate overwintering pest sources. After earthing up, loosen the soil in time so as not to affect the growth of the trees. In addition, chickens can be raised under the trees in the orchard to feed on the pests, which can both reduce pest damage and produce pollution-free chickens.

3. Control on the tree

Control on the tree is generally carried out from the petal-fall stage to the young fruit stage, preferably when about 95% of the petals have fallen, when the young fruit has just begun to grow and is about the size of a grain of rice. This is also the period when fruit moths lay eggs. Spraying 8% abamectin at 3000-4000 times dilution or 48% chlorpyrifos at 1000 times dilution for control gives good results.

The above is an introduction to the control methods for plum fruit moths. We hope it helps you. To learn more related knowledge, please stay tuned to us.