Attractant for aphid predatory natural enemy insects
A technology of natural enemy insects and attractants, applied in the directions of attracting pests, biocides, animal repellents, etc., can solve the problems of decreased control effect, increased control cost, and aggravated environmental pollution, etc. Low cost, environmentally friendly effect
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Embodiment 1
[0011] The preparation method of the attractant of embodiment 1 aphid predatory natural enemy adult
[0012] Extract essential oil from pagoda tree flowers and chamomile flowers, weigh 150 grams of flowers, place them in a round bottom flask, add 300ml of distilled water, and heat in an oil bath at 120°C. Measure 70ml of diethyl ether, put it in a round bottom flask, add zeolite, keep it in a constant temperature water bath at 45°C, and distill and extract for 5 hours at the same time. Add anhydrous sodium sulfate to the ether extract, dry it, seal it overnight, filter, and concentrate the filtrate with a rectification column in a water bath at 45°C, then purging it with nitrogen to constant weight, and take the essential oil for later use.
[0013] α-pinene, eugenol, locust tree flower essential oil, and matricaria essential oil are mixed according to weight ratio, and the mixed solution is added to rubber carriers (each rubber carrier contains 10-25 mg of lure) to prepare lu...
Embodiment 2
[0017] Attractive effect of different weight ratios of attractants on oleander planting belts in practical application of predatory natural enemy insect adults
[0018] From April 5, 2015 to April 13, 2015, the luring experiment of predatory natural enemy insect adults was carried out in the oleander planting belt of the Third Ring Road, Fuzhou City. The planting belt of oleander with consistent growth was selected as the experimental area. To facilitate detection of the lure effect, the lure core prepared in Example 1 is placed on the barrel trap, the trap is flush with the top of the oleander, and the distance between adjacent traps is 30m. Four replicates were set up for each treatment, arranged randomly, and the rubber carrier without attractant was used as the control. After setting, investigate the number of adult predatory natural enemy insects attracted every two days. The results are shown in Table 2.
[0019] Table 2 Attractive effect of different formulations on ...
Embodiment 3
[0022] Attractive effects of different weight ratios of attractants on adult predatory natural enemy insects in cabbage field
[0023] From May 7, 2015 to May 15, 2015, the luring experiment of predatory natural enemy insect adults was carried out in the cabbage field of Jiantian Village, Xindian Town, Fuzhou City. Choose the same growth day of Chinese cabbage as the experimental area. To facilitate detection of the lure effect, the lure core prepared in Example 1 is placed on the barrel trap, the trap is hung above the Chinese cabbage, and the distance between adjacent traps is 20m. Four replicates were set up for each treatment, arranged randomly, and the rubber carrier without attractant was used as the control. After setting, investigate the number of adult predatory natural enemy insects attracted every two days. The results are shown in Table 3.
[0024] Table 3 Attractive effect of different formulations on predatory natural enemies in the cabbage field
[0025] ...
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