What are the common diseases and insect pests of kiwifruit? How to prevent and cure it? What are the different phenological phases of chemical control?

Kiwifruit, also known as kiwifruit, is a kind of fresh and tender fruit with rich nutrition and delicious flavor. The texture is soft and the taste is sour and sweet. So what are the common diseases and insect pests of kiwifruit? How to prevent and cure it? What are the different phenological phases of chemical control?

What are the common diseases and insect pests of kiwifruit? How to prevent and cure it?

1. Mulberry white matter scale

The 1000 times liquid spray of fenitrothion can be used for control, and the root-knot nematode can be controlled with 1-4 kg per mu of Schirenophosphate.

two。 Flower rot

Before the flower bud, use 3-5 Baumedo stone sulfur mixture, or 65% Dysen zinc wettable powder 500 liquid, to carry on the control.

3. Leaf blight

The control can be carried out with 80-1000 times solution of 50% topazine wettable powder.

4. Grey mold disease

It can be prevented and treated with 1000 times of carbendan or 800 times of Dysen zinc.

5. Soft rot and mature rot

Carbendazim 800-1000 times solution can be used for control.

What are the chemical control of diseases and insect pests in different phenological periods of kiwifruit?

1. From late February to mid-March, kiwifruit is in its budding stage. During the occurrence of adults, the pseudo-death of beetles and citrus gray weevil were used to shake the branches and fall to the ground in the early morning or evening, concentrate on killing, and cut off the tender shoots damaged by the heart beetle in time. The whole garden is sprayed with 3-5 Baumetu stone sulfur mixture.

2. From the end of April to the middle of May, kiwifruit is in flowering stage. In order to prevent the occurrence of bacterial flower rot and canker, 0.1-0.2 Baomedo stone-sulfur mixture or 1-buds-1-100 Bordeaux solution can be sprayed once at the beginning of flower buds.

From June to July, kiwifruit is in the stage of young fruit expansion. In this period, attention should be paid to the prevention and control of prick-sucking mouth pests such as black-tailed leafhopper and two-star leafhopper. 4000 times of bifenthrin EC or 4000 times of imidacloprid can be sprayed to control small salary beetles, scale insects and red spiders; hanging a moth trap lamp or a frequency vibrating insecticidal lamp near the kiwifruit orchard can trap and kill phototaxis moths, beetles and other pests.

4. From September to November, kiwifruit is in the fruit ripening stage. During this period, attention should be paid to the prevention and control of canker. 20% thiobacillus copper suspension 400 times, or 77% copper hydroxide wettable powder 300 times, can be sprayed on leaves, branches and other parts.

5. From December to January of the following year, kiwifruit is in the dormant period. This period should be combined with winter pruning, cutting off the branches of diseases and insect pests, scraping off the old warped bark of the trunk, and removing dead branches, fallen leaves and rotten fruit in the field, and taking them out of the orchard together with concentrated burial or burning (orchards with canker disease need to be burned).