"Adopting 'insects to cure insects' biological control not only improves the quality of tobacco leaves, but also reduces the cost of tobacco farmers." Speaking of the biological control of smoke aphid cocoon bees, Ding Yongxing, a tobacco farmer in Houping Village, Pingzhuang Town, Cenggong County, Guizhou Province, said that this year he planted 40 acres of flue-cured tobacco and is expected to generate income of 120,000 yuan, and this technology alone can save 15,000 yuan.
Tobacco aphid cocoon bee is a natural enemy of the tobacco leaf pest tobacco aphid, through artificial breeding and breeding of tobacco aphid cocoon bee into the flue-cured tobacco field, can effectively control the breeding and growth of tobacco aphids, inhibit the spread of aphid virus, thereby reducing the use of pesticides in flue-cured tobacco production, but also help tobacco farmers reduce the cost of purchasing pesticides and insecticidal consumption of man-hours, for tobacco farmers to save money and increase efficiency.
In recent years, the county has actively built ecological and green agriculture, cultivated high-quality flue-cured tobacco bases, adhered to the concept of biological prevention and control of "insects to treat insects", since 2013, Cengong County in Tianma Town Baiyanping, Kaiben Town Shenjiawan, Yangqiao Township Zhuba three modern tobacco agriculture demonstration bases to carry out tobacco aphid cocoon bee control technology test after the success of the test, has become one of the first counties in Qiandongnan Prefecture to promote the tobacco aphid cocoon bee control technology.
Through the promotion and application of the biological control technology of tobacco aphid cocoon bee, the flue-cured tobacco aphid is effectively controlled, the residue of tobacco pesticides is reduced, and the quality of tobacco leaves is improved. At present, the county has organized more than 30 agricultural technicians to go deep into the tobacco area to train tobacco farmers in the biological control technology of tobacco aphid cocoon bees, and continuously improve the scientific and technological content of flue-cured tobacco production. According to Xiong Mingyou, a technician at the tobacco station in Kaiben Town, the promotion of biological control technology of tobacco aphid cocoon bees can save tobacco farmers 300 yuan per mu of economic costs such as pesticides and labor.
Through the promotion of the biological prevention and control technology of "insects to treat insects", more than 90% of the high-quality tobacco leaves in the county have reached 90%. This year, the county planted 33,700 mu of flue-cured tobacco, and has promoted the tobacco aphid prevention and control technology in 1,100 tobacco-growing main bodies, achieved full coverage of biological prevention and control, and built a "protective net" for flue-cured tobacco production. Zhang Nengqiu