5.2% olefinic effect and ethephon
1. Product Name: è” æ€ kill
2. Toxicity: low toxicity
3. Applied crops: lychee
4. Using technology
(1) 20 kg / bottle of water 20 kg, formulated into a concentration of 1 000 times the drug solution, about 5cm in the winter shoots, when the young leaves of the base are unfolded, the leaves of the litchi leaves are taken out and sprayed to the leaves. Or the water droplets on the leaves should be seen as the best, and the spray should be even, the smaller the fog point, the better the killing effect.
Foliar spray control of winter shoots depends on climate change and litchi varieties. During the flower bud differentiation period of litchi varieties, the temperature reached the low temperature condition required for flower bud differentiation of the variety for 2~3 days.
For example, the early maturity of March red can be sprayed in the middle and the middle of October, the mid-maturing variety is in the upper and middle of November, and the late-maturing is in the upper and middle of December. Spraying the sprayed winter shoots in a timely manner can promote the differentiation of flower buds, and it is the lychee that can pass through the flower. If the winter shoot is more than 10 cm long and shorter than 15 cm, the red leaves have spread but have not turned green, and the lower part of the female shoots can be used when the autumn shoots are ripe, and the same killing effect is better.
However, it is important to note that the new leaves that have just turned green are not used, so as to avoid phytotoxicity. Therefore, the leaves have just turned green, and there are no litchi trees or weak trees extracted from the winter shoots. Remember not to use them. Do not mix with other killing agents.
(2) Spraying early flower spikes, the long spikes become shorter
Among the different types of litchi, the early flowering ears in the early, middle and late mature varieties were sprayed. Use 1 000 times of liquid medicine to extract about 3 cm in the lychee flower ear, no more than 6 cm, evenly spray the flower spikes, spray to the flower ear and stick the liquid medicine, and the leaves around the flower ear are moist, so that it can be extracted again. The length of the spikes can be shortened by 1/2. The method is especially suitable for lychee trees with early flowering, long spikes and strong trees.
However, please note that if the spikes exceed 10 cm, do not spray. It is strictly forbidden to use the tree that is too weak and the flower spikes are weak. This is mainly because the growth process of the spikes is too long, the nutrients of the tree have been consumed more, and the spray will cause the main spikes to burn off, while the main ears of the burnt will be difficult to extract the spikes.
5. Precautions
Can not be mixed with other killing agents.
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