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Studies on the Application of ME and GF-120 to Control Bactrocera Dorsalis (Hendel)

Author: ChenHan
Tutor: ChenJiaZuo
School: Fujian Agriculture and Forestry University
Course: Ecological security
Keywords: The Orange small- fly Population dynamics ME GF-120
CLC: S433
Type: Master's thesis
Year: 2008
Downloads: 82
Quote: 1
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Abstract


April 2006 to August 2007, to take the fly trap bottle in the field, regularly take inventory of the bottle trap and kill a number of insects, small orange fly populations anniversary of the rise and fall of the Fuzhou area, system monitoring, and distribution of monitoring points in the the loquat orchard, Pattaya Park, citrus groves, Four Seasons Young Taoyuan, Taoyuan, mango orchards and orchards surrounding areas. In the the loquat park, small orange fly occurs earlier, to reach the peak of the first full year in mid-June; small orange fruit fly infestation is most serious in the Pattaya Park, the highest peak of the whole year, the average trap bottle a day can trap and kill of Tephritidae 127. The small orange fruit fly population dynamics depends on two key factors: climate and host fruit maturity, its population at a low level during the winter months, began to grow from spring throughout the year the peak reached in the fall, after over temperature dropped decline. In different periods of the day, small orange fruit fly habitat also different. Regularity of Growth and Decline to master the field small orange fly populations can provide the basis for comprehensive prevention and control of insect field. The the trapping bottle trapping bottle and only add a dose of ME by comparing the next day to add the difference in the number of booby traps insects determined measures of monitoring and male annihilation reasonable dosing time interval, in the summer, the two were 6 ~ 10d and 21 ~ 25d; winter, both 16 ~ 20d and 26 ~~ 30d, respectively. Add insecticide under different temperature conditions by observing the impact of the ME effect, found in the case of lower temperatures, or more appropriate, adding insecticide can improve the effect of the booby traps, and when the temperature is higher, insecticides effect would be counterproductive. The number of different openings, the opening diameter, different colors, different auxiliary liquid as well as different suspension height trapping bottle booby insect number comparison, studies show that: trapping bottle than ideal way to the opening for the opening of the four adjacent openings between approximately a right angle, and the three openings, at about 120 ° between adjacent openings; suitable opening diameter of 3 ~ 5cm; appropriate color is yellow; adding a liquid, especially in soapy water and oil in the bottom of the trap bottles, booby traps effect can be significantly improved; 2.5m trap bottle trap and kill the insects from the ground, but it is too much trouble in the operation of the hanging bottles. Compare the control effects of the application of the GF-120 orchards take point spray, and hanging bottles, found that in addition to the rainy month, the rest of the month to take point spray spraying more in line with actual production. 12 by comparing the administration of hunting fly bait time and space intervals of different cell unit area spraying amount is the greater, the higher the frequency of spraying, the control effect better, but considering the prevention cost factors, I believe that, in the under the premise of no significant effect on the control effect, a more reasonable the spraying space and time intervals were 4m, 9d and 8m, 6d.

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CLC: > Agricultural Sciences > Plant Protection > Pest and Disease Control > Plant pest and its control
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