Worker SpiderIf bitter melon is attacked by worker spiders, their juice will be sucked away, causing the leaves to turn yellow, leading to premature aging of the plant and the failure of the young melons to expand. The specific prevention and control method is to check the leaves frequently during the growth stage of bitter gourd. Once pink insects are found on the leaves of the plant, use 1000 times mite-killing water solution or 1500 times mite-sweeping water solution to spray them, about once every 7 to 10 days, 2 to 3 times will be enough. Whitefly, aphids, tea yellow mitesThese pests can damage leaves, negatively affecting flowering and fruiting, and may also spread viruses, increasing the risk of serious diseases. When we find the above-mentioned pests on the spider, we can spray 1500 times omethoate aqueous solution on the leaves for timely prevention and control. Swallowtail butterfly, toxic moth, scarab beetleThese pests usually bite the leaves, causing a loss of nutrient accumulation, which in turn affects the flowering and fruiting of bitter melon and the growth of young melons. The solution is to spray 800 times the amount of trichlorfon aqueous solution or 1000 times the amount of DDT aqueous solution on the leaves after the new branches and leaves emerge. Cucurbit fruit flyThe melon fly is one of the biggest enemies of bitter melon. It will enter the fruit of bitter melon, causing the young melon to deform, even rot and deteriorate, and also produce an unpleasant odor. The measure to be taken is to use 1000 times the aqueous solution of Fipronil to spray on the young melons. Generally, 2 to 3 times will be enough. Remember to pick the rotten fruits in time. |
>>: Celery pest and disease control
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