What kind of pesticide does the leaf curler use?
Leaf rollers are a common pest of plants, also known as green insects, oil insects, etc., mainly to harm mulberry trees, then leaf rollers with what pesticide?
1. Basic introduction of leaf rollers
The Chinese scientific name of leaf roller is mulberry mulberry borer, which is an insect of Pyralidae, Seriphidium, mainly distributed in Jiangsu, Zhejiang, Sichuan, Shandong, Taiwan, Anhui, Jiangxi, Hubei, Guangdong, Guizhou and other places.
The specific harm of leaf curl insects is as follows: in summer and autumn, larvae spin silk and repair leaves into rolled leaves or folded leaves, larvae hide their mouth to eat mesophyll, residual veins and upper epidermis form transparent gray-brown film, and then rupture into holes.
The adults of leaf rollers are phototactic. They usually lay eggs on the back of the tip leaves (2-3 eggs laid together along the veins). The egg stage is 28 days, the larval stage is 12-19 days, and the pupal stage is 5-27 days.
2. What pesticides do leaf rollers use?
The leaf curl insect is controlled with acetamiprid, roll through insecticide, indoxacarb, methoxyfenozide and other pesticides. Generally in larval stage, 75% phoxim 1000 times solution can be sprayed to kill larvae at night, or 90% trichlorfon technical 1000 times solution spray to kill. In the adult stage, sweet and sour liquid was used to trap and kill.
3. Other control methods of leaf rollers
1. Physics
Black light can be placed to trap adults, with bunches of grass or pile of grass to trap overwintering mature larvae.
2. Manual
In autumn and winter, the overwintering larvae near fallen leaves, cracks or buildings should be killed in time, and the newly hatched larvae should be killed in time in summer, and the injured leaves should be removed if necessary.
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