Aphids and spider mites are pests that seriously endanger fruit trees. They can be used locally in rural areas and use waste tobacco for prevention and control, which not only reduces costs, but also reduces pesticide pollution and improves fruit quality.
1. Control red spiders. Dispose of discarded or low-grade tobacco leaves (can be broken with tobacco and tobacco) 0.5 kg plus 5 kg of boiling water, soak for 24 hours, and stir once every 3-4 hours to allow the active ingredients in the leaves to fully exude. All the tobacco leaves were smoked out of the tobacco leaves, and then the tobacco leaves were removed, filtered with gauze, and 15 kg of water was added to the filtrate, and the mixture was thoroughly stirred and prepared. Spray once every 5 days, and use 2 times to basically control the damage of Starscream. The water with the good leaves should be used up the same day, no later than the next day. In the summer and autumn, when the temperature is high and dry, it is prepared according to the ratio of 0.5 kg of tobacco leaves and 25-30 kg of water to prevent phytotoxicity. It is better to add 0.1% waste diesel oil or synthetic washing powder to the prepared tobacco leaf water.
2, prevention and control of mites. The stems, veins or useless parts of the low-grade tobacco are chopped, 10 kg of water per kilogram of raw material is added, and after boiling for 1 hour, it is filtered, and the aphids can be controlled by spraying with the cooled filtrate, and the spraying is usually performed once every 3-5 days. It can also be mixed with tobacco water and lime water for better control.
1. Control red spiders. Dispose of discarded or low-grade tobacco leaves (can be broken with tobacco and tobacco) 0.5 kg plus 5 kg of boiling water, soak for 24 hours, and stir once every 3-4 hours to allow the active ingredients in the leaves to fully exude. All the tobacco leaves were smoked out of the tobacco leaves, and then the tobacco leaves were removed, filtered with gauze, and 15 kg of water was added to the filtrate, and the mixture was thoroughly stirred and prepared. Spray once every 5 days, and use 2 times to basically control the damage of Starscream. The water with the good leaves should be used up the same day, no later than the next day. In the summer and autumn, when the temperature is high and dry, it is prepared according to the ratio of 0.5 kg of tobacco leaves and 25-30 kg of water to prevent phytotoxicity. It is better to add 0.1% waste diesel oil or synthetic washing powder to the prepared tobacco leaf water.
2, prevention and control of mites. The stems, veins or useless parts of the low-grade tobacco are chopped, 10 kg of water per kilogram of raw material is added, and after boiling for 1 hour, it is filtered, and the aphids can be controlled by spraying with the cooled filtrate, and the spraying is usually performed once every 3-5 days. It can also be mixed with tobacco water and lime water for better control.
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