Early prevention of ginger borer
The borer is the most important insect pest on ginger, also known as ginger borer and corn borer. It can occur in about three generations in Shandong in one year. It is very serious for the production of ginger. Recently, with the arrival of the summer, borers and other insects also entered the outbreak, reminding farmers to prevent and control earlier. External Hinges,External Door Hinges,External Cabinet Hinges,External Gate Hinges Ningbo Hengchieh Locking Technology Co., Ltd. , https://www.hengchieh.com
When the ginger grows to about 20 centimeters, the first generation of borers begins to harm, the newly hatched larvae first harm the young leaves, and by the third instar the stolons begin to invade, often invading at 2-3 knots, often causing the wilting of the heart or the whole plant. Withered. The second generation of borers stemmed mostly from the middle and upper parts, especially the amount of central insects. At present, most of the locusts in the ginger field are eggs and 1-2 instar larvae that have not yet entered the culm. Wormwood hi hi hi temperature and humidity, high temperature drying is not conducive to its occurrence, especially when the ginger plant grows to 50 cm, when the ginger field closes the high humidity environment, resulting in serious pests, so the prevention and treatment of borers should be carried out earlier.
For the prevention and control of borers, it is possible to prevent insects by planting trapping and killing crops around the ginger fields, and to eat in addition to harming ginger, and also harm crops such as corn and sorghum. According to this characteristic, it is possible to purposely plant hunter-killer crops around Jiangtian, and after the adults have laid eggs, they can be controlled or removed by chemical treatment. At the same time, pay attention to the planting density of ginger field, remove the old leaves and rotten leaves in the field, and reduce the humidity in the field. Chemical control should be carried out in time. Before the aphids enter the stems, the plants are sprayed with medicaments. It is possible to apply foliar sprays such as beta-cypermethrin, methysulphonate, and phoxim, to prevent stem borers from entering the stems and increase the difficulty of control.