Heartworms are really annoying, resulting in incomplete fruit.
Larval hazards drill holes, and calyxes are most common.
After the moth enters the fruit, the skin is channeled underneath, forming a tunnel curve.
The fruit is enlarged and deformed, and the uneven height shows the fruit surface.
There is feces inside the tunnel, which is shaped like "bean paste filling".
The annual algebra changes everywhere, and 1 to 2 generations can be seen.
The old mature larvae form winter cocoons, and the soil under the tree builds a home.
It will emerge from the ground in the spring of the following year and continue from May to August.
The excavation time is early and late, and it is closely related to the morning and evening of precipitation.
After excavation, the cocoon of summer is formed, and the adult insects are seen in 8 to 10 days.
Fly to the fruit to lay eggs and hatch the larvae to climb the fruit surface.
It is mothed into the fruit for 20 days, and the fruit is peeled off to make a winter cocoon.
I have experience in the prevention and control methods, and you have listened to me to talk about it in detail.
The ground is covered with tree discs, and the number of larvae unearthed decreases.
Fruit bagging is safe, and larval borers are difficult.
Open-field cultivation grasps the key, late May and June half.
Before the overwintering larvae emerge, the ticks are poisoned to mix the soil.
Sprinkle on the surface of the earth under the crown, or spray it with a panacea.
The amount of insects unearthed has been greatly reduced, which is conducive to high quality and high yield.
The tree should also strengthen the pipe, and the field should be selected.
Frequent careful inspection and observation, found that the larvae have eggs.
Timely spraying should not be delayed, and peach elixir is the first choice.
Destroying the saury is also magical, and the kung fu effect is not ordinary.
Spray the drug at the right time, and the larvae can be completely annihilated.
Author: Wang Tianli
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