How to control tobacco pear planthopper?

How to control tobacco pear planthopper? The occurrence of pear planthopper is characterized by many generations. The adult jellyfish period is long and the generations overlap. Especially from late June to early July, nymphs secrete a lot of mucus, resulting in a large number of fallen leaves, which not only seriously affect the tree potential, but also reduce the quality of pear fruit, which is difficult to control with general pesticides. The effect of tobacco lime water control can reach more than 95%. One. Tobacco lime water preparation tobacco 1 kg, quicklime 1 kg, water 30 kg, first soak the tobacco leaves in the basin and cover them with 10 kg boiled water, rub the tobacco leaves vigorously when the water temperature is not hot, and then remove the tobacco leaves, put them in another 10 kg water to continue rubbing, and then pour the twice rubbed leaf water solution together. Two. the use method uses the tobacco lime aqueous solution spray, when using, adds 0.3% soap, the insecticidal effect is higher. Three. Note 1. Nicotine is the main insecticidal component of tobacco lime water, which is easy to volatilize, so tobacco lime water should not be stored for a long time. 2. Lime milk and soap should be added before use so as not to reduce the efficacy. 3. Nicotine is toxic to people, so we should pay attention to safety when kneading tobacco water to prevent poisoning. Click to get more tobacco planting techniques click to get more flower planting techniques