A kind of control method of onion fly adult
A technology for onion flies and adults, which is applied in the field of efficient prevention and control of onion flies adults, can solve problems such as the increase in egg production of onion flies, and achieve the effects of avoiding re-transformation into adults, efficient control, and improved control efficiency
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Embodiment 1
[0061] experiment method
[0062] Monitor onion fly population dynamics and determine the peak period of control. The steps are as follows:
[0063] at 667m 2 15 blue boards were hung in the garlic field at a medium distance. When hanging, the lower edge of the blue board was 10-15 cm away from the garlic seedlings. The survey was conducted every 7 days and the number of onion flies was recorded, and the blue board was replaced at the same time. The experimental results see figure 1 and figure 2 .
[0064] Population dynamics of onion fly in garlic field: from figure 1 It can be seen that the population dynamics of the onion fly in autumn-sown garlic fields mainly appeared in the peak periods of winter and spring. In 2018 and 2019, the winter peaks of onion fly populations in the autumn sowing garlic fields occurred on November 26 and December 9, respectively. The weekly average number of insects per blue board was 280.50 and 73.25, respectively. With the drop in temper...
Embodiment 2
[0066] Select a suitable sticky board through the effect of trapping and killing onion flies. The specific steps are as follows:
[0067] In order to find out the trapping effect of yellow board and blue board on garlic field onion fly, at 667m 2 Fifteen sheets of each of the two types of sticky insect boards were hung equidistantly in the garlic field, and the number of onion flies was investigated and recorded every 7 days, and the sticky insect boards were replaced at the same time. See the results of use image 3 .
[0068] Depend on figure 2 It can be seen that in the whole growth cycle of garlic, the four peaks of the number of onion flies trapped and killed by the blue board are 280.50, 233.00, 145, and 145.25 respectively, and the four peaks of the number of onion flies trapped and killed by the yellow board are 65.00, 33.25, 26.50, and 20.25 respectively. The number dynamics of onion flies trapped on the board was basically the same as that on the yellow board, bu...
Embodiment 3
[0070] Onion fly spawning barrier
[0071] When 1.5-2cm of mulched garlic was unearthed, 3 treatments were set. Treatment 1: Use drag and friction to break the film, that is, use a heavy and soft cotton material to rub the film to help the seedlings to break the film, and drag once in the morning and evening for two consecutive days. ;Treatment 2: Tap the plastic film with a large broom, use the gap on the broom to help the seedlings emerge from the film, pat once in the morning and evening, for two consecutive days; Treatment 3: Manually use sharp objects such as branches and iron wires to make holes in the film , so that the garlic sprouts are exposed. Each treatment was repeated 4 times, arranged in random blocks, and each plot area was 20 m 2 . The 10-point sampling method was adopted, and 10 plants were investigated at each point, once every 7 days, and the total number of larvae on the roots of each plant was recorded in each survey. The experimental results see Fig...
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