Recently, some readers called the newspaper to report that the scarabs in the kiwifruit garden were seriously endangered and asked how to prevent them. On this issue, the reporter interviewed Professor Lei Zongzhong of the Yangling Vocational and Technical College. He gave the following scientific guidance recommendations.
Lei Zongzhong said that there are more than 10 kinds of scarabs, and their larvae are called pupae and they belong to underground pests. They eat the root barks and tender roots of the plants and cause the kiwifruit roots to lose their ability to absorb and weaken the tree vigor. Adults bite the leaves on the tree and, when severe, feed the leaves into a net. During the day in the soil, it will come out at night. Among them, prevention and treatment of chafers can be started in many ways:
1. Use artificial adult's pseudo-dead nature to manually shake off in the evening or dawn of concentrated damage period to capture adult insects.
2, the use of some sweet beetle sugar vinegar, fruit growers can be hung in the tree during the activity of hanging sweet and sour cans bottle. The sweet and sour ratio is 3-5:1, and a small amount of trichlorfon and other insecticides are dropped into the sweet and sour liquid.
3. Use the phototaxis of scarabs to set black lights, frequency-vibration insect killer lamps, and high-pressure mercury lamp traps. Place a small amount of oil under the lamps and drop them into the water. After the beetle catches the light, it cannot stick to the oil.
4. For the species of beetle and leaf-bearing beetle, spray 50% of parathion 1000 times liquid and 2000 times of chrysanthemum killing oil at the crown of adult initiation to kill adult worms.
5. For the species of beetles lurking in the soil during the day, spray 75% phoxim EC on the ground and plow into the soil; or spray the ground with phoxim microcapsules 300 times, then dip into the soil and poison. In and out adults. Inflict 2.5% green kungfu emulsifiable concentrate 2000 to 3000 times in the early stage of the occurrence of harmful shoots and young leaves.
In addition, Lei Zongzhong reminded the majority of farmers that applying organic fertilizers in the kiwifruit field must use organic fertilizers that have been thoroughly decomposed, otherwise, they would easily cause damage to the beetles.
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