Fruit trees harmed by citrus fruit fly are citrus, persimmon, mangosteen, carambola and other crops. It is an omnivorous pest. Her breeding ability is strong and its adaptability is wide. The larvae cluster in the fruit to eat flesh and develop and grow, resulting in the unripe fruit first yellow, internal rot. Seriously affect the yield and quality of fruits and vegetables. Therefore, vigorously researching and promoting the early warning and prevention and control technologies for citrus fruit fly Bactrocera dorsalis plays a very important role in improving citrus yield and quality. Under the vigorous promotion of modern green plant protection, the use of frequency-vibration pest-killing lamps to control pests in orchards has become more widespread, and citrus gardens can try their best.
Select a representative orchard 1333.342000.01m2, orchard fixed-point suspension flycatcher ether trap 4775 / hm2 trap male adult Bactrocera truncates, each trap separated by about 20m distance, perennial suspension monitoring, trap hanging in the middle of fruit trees About 1.5m in height, try to avoid the blocking of leaves and sunlight, increase the monitoring effect and reduce the release rate of the attractant, add 1 attractant every 2025d, add 2mL of attractant (1) each time, from December to March of the following year Observed once a month, observed once every 10 days from April to November, and the number of trapped insects per trap was recorded. The results of the trapping of citrus fruit fly and the variation of field population were analyzed.
Although in the traditional book it was pointed out that Diptera insects generally do not have light-trailing wins at night, but in the investigation of the control of citrus Bactrocera dorsalis, it was found that the fruit damage rate in the garden was large after the suspension of exchange of vibrated insecticidal lamps. Alleviation was basically harmed by fruit fly. Since bitter gourd was harvested every year, the bitter gourd was harvested year after year; the plant protection station in Guiping City, Guangxi Province used the AC pulse light to control the guava orange fruit fly and the light control area guava. The victimization rate was 4.20}0, the victimization rate in fruit bagging area was 5.80}0, and the victimization rate in drug control area was 66.2. A variety of prevention and control methods for controlling Bactrocera dorsalis were adopted, such as exchange frequency vibration killing lamps and additive attractants, and some results were achieved. The trial is being gradually expanded.
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