MySheen

Main insect conditions in early summer tea

Published: 2024-11-21 Author: mysheen
Last Updated: 2024/11/21, First, the second generation of tea inchworm occurred more than the first generation, similar to last year. According to the investigation of larval age in Jingshan tea field, the suitable period of field control of the second generation is predicted to be from June 2 to June 8. The pesticides can be selected as 2.5% kungfu (25ml/mu), 2.5% dimekill (25ml/mu) and 0.5% matrine (No.4)(50ml/mu) of Luyu brand. The safe interval period after spraying the above pesticides is 7 days. II. Green leafhopper

1. Tea inchworm

The occurrence degree of the second generation of tea inchworm is heavier than that of the first generation and similar to that of last year. According to the investigation of larvae in the field of Jingshan tea at this station, it is predicted that the suitable period for field control of the second generation is from June 2 to June 8. 2.5% kungfu (25ml / mu), 2.5% enemy kill (25ml / mu), 0.5% matrine (No. 4) (50ml / mu) can be selected, and the safe interval after spraying the above pesticides is 7 days.

False-eyed small green leafhopper

The false-eyed small green leafhopper is a moderately heavy occurrence year this year, and the first peak is from the beginning of June to the early stage of high temperature and drought. The appropriate period for control is in early June, and the specific control time should be controlled when the nymphs (crawling) in the field account for more than 80% of the total number of insects. 10% imidacloprid (15-20 grams per mu) can be selected and sprayed. The safety interval was 10 days after treatment.

III. Tea Elephant Beetle

The tea weevil, also known as Flower Chicken, is one of the main pests in the tea garden in our region, and this insect occurred moderately this year. It is predicted that the appropriate period of control is from May 30 to June 5. The medicament can choose 2.5% Uranus (60 ml per mu) and spray the noodles. The safety interval was 10 days after treatment.

Fourth, tea orange gall mite

The tea orange gall mite occurred in a moderate degree this year, and the damage degree of the tea garden was lighter than that of the young tea garden and the modified tea garden, especially in the tea garden which was not sealed with stone-sulfur mixture at the end of last autumn. The suitable period for control is in early June. Tea gardens that do not pick tea can be sprayed with 1% mifenac (20 ml per mu) or 0.6% mifenac (30 ml per mu).

5. Other pests

Tea black moth occurs lightly this year, and most tea gardens do not need to be controlled with medicine. a few tea gardens with tall canopy and close to the forest belt may have a certain number of insects. The suitable control period of the second generation is predicted from June 10 to 15, with 2.5% Uranus (20 ml per mu) plus 80% dichlorvos (50 ml per mu) and a safety interval of 7 days.

The tea moth occurs lightly this year, and a few young tea gardens or modified canopy tea gardens need to be controlled. the appropriate period for the control of the second generation is in early June, and the insecticides can be used to kill 2.5% of the enemy or 2.5% kungfu (10ml / mu).

 
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