Control methods of plum heart borer

Plums will suffer from diseases and insect pests in the process of growth, of which the most harmful is the heart borer, which is a Lepidoptera small leaf moth pest, mainly larvae, the larvae will eat in the fruit, after the fruit is damaged, the wormhole exudes pectin, so that the fruit can not develop normally, and with the passage of time, feces are gradually excreted from the wormhole, which can easily lead to fruit shedding. So how to prevent and cure heart-eating insects? Let's take a look.

1. Clear the garden in winter

Before the orchard enters winter, it is necessary to clean the orchard in winter so that the plants can survive the winter safely. The work of clearing the orchard must be thorough, and the diseased branches, diseased leaves and diseased fruits on the ground must be burned or buried deeply, and the diseased branches, diseased leaves and rotten fruits on the plants should also be trimmed off and cleaned up together. Re-cultivate the soil and fertilize deep into the soil, eliminate the overwintering pests and eggs in the soil, and finally spray cleaning agents on the whole orchard to thoroughly kill bacteria and pests, which can reduce the harm of heart-eating insects and other diseases and insect pests.

2. Prevention and cure under trees

Before overwintering to be unearthed by adult Eclosion, cultivate the soil around the tree with sterilized soil, cultivate a mound about 10 cm thick, and step on it after cultivating the soil, so that the emergence of adults can not be unearthed in time. In addition, we can also carry out soil preparation and weeding and scraping bark to eliminate the source of overwintering insects, and loosen the soil in time after soil cultivation, so as not to affect the growth of the plant. In addition, chickens under the forest can be raised in the orchard and feed on pests, which can not only reduce insect pests, but also raise pollution-free chickens.

3. Tree control

Tree control is generally carried out from the flowering stage to the young fruit stage, preferably when the amount of fallen flowers reaches 95%, when the young fruit is just beginning to grow and is the same size as the grain of rice. This is also the period when heart-eating insects lay eggs, and you can spray 3000-4000 times of avermectin or 48% 1000 times of chlorpyrifos for control.

The above is the introduction of plum heart borer control methods, hope to help you, want to know more related knowledge, please pay attention to us.