Control of tea false-eyed small green leafhopper
Tea false-eyed small green leafhopper alias false-eyed small green floating dust, small green leafhopper and so on, is one of the most important insect pests of tea in Fujian Province. The adult and nymph were mainly used to suck the juice of the tender shoot of the tea tree, and the female adult laid eggs in the stem of the tender shoot, which hindered the growth of the tea tree, curled and hardened the leaves of the damaged buds, and scorched the leaf tip and leaf edge, which affected the yield and quality of tea.
The insect has many generations in a year in Fujian Province, 12-13 generations a year in low-mountain tea areas, and 8-9 generations in alpine tea areas in May-June and September-October, with a peak period from July to September. The adults overwintered on tea plants, legumes and weeds and began to move when the air temperature rose to 10 ℃ in spring. When the ten-day average temperature was between 16 and 26 ℃, it was more suitable for its growth and development. Most of the adults lay eggs in the tender stem between the second and third leaves of the new shoots. The worm tends to be tender and likes to inhabit on the back of the bud and tender leaves. The number of 2-leaf 3-leaf worms under the bud is large. After the third instar, the nymphs and adults are active and can run rampant or jump. Based on the analysis of the occurrence and damage characteristics, historical data and weather conditions, it is expected that the tea false-eyed small green leafhopper will occur moderately in Ningde, Fuzhou, Quanzhou and Nanping, and moderate in other cities.
Prevention and control measures:
The main results are as follows: (1) No legume crops should be planted in the tea garden, and weeds should be eradicated in time.
(2) when the tea was picked in time, it was found that the egg on the tender shoot was removed at any time, which could significantly reduce the insect population density.
(3) Pesticide control: pesticides with high efficiency, low toxicity, no residue and no export restriction should be selected. When the amount of louver is more than 6, the whole garden should be sprayed, and those who do not reach the control target can be treated as appropriate. Control agents can choose 2.5% Uranus EC 1000 times, or 10% imidacloprid wettable powder 3000 times 4000 times, or 35% Saidan EC 1000 times, or 25% Aktai water dispersible granules 15000 times spray control.
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Processing technology of Lingtou Dancong tea
The "honey rhyme" of Lingtou Dancong tea is formed in the processing technology, and the main key processes are green and baking, which are very important for the formation and development of "honey rhyme" characteristics, complement each other and complement each other. The main results are as follows: (1) Green is the key process of the formation and development of "honey rhyme". When the sun-drying is over, the sun-dried leaves give off a distinctive characteristic smell of varieties. With the increase of the normal times of making green, the smell of green slowly changes from light to strong, the smell of grass fades, and the sweet fragrance of nectar is revealed, especially after the removal of green. The green leaves have a mellow.
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Storage skills of new tea
1. Quicklime storage method. Wrap and tie the tea in thin Kraft paper, arrange the layered ring around the dry and closed ceramic altar, put the quicklime bag in the middle of the tea bag, seal the jar mouth, and place the altar in a dry and cool place. The raw lime bag is changed every 1-2 months, so that the tea can be preserved for a long time without going bad. two。 Charcoal storage method. Put the charcoal 1kg into a small cloth bag, put it into the bottom of the tile altar or small iron box, then arrange the packaged tea on it layer by layer, until the jar is full, and then seal the jar mouth. Wood
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