Seven Methods for the Non-harmful Control of Vegetable Aphids
Main content introduction: related information about melons, fruits, and vegetables, seven methods for the non-harmful control of vegetable aphids, the editor will introduce the following methods.
1. Yellow board traps for aphids. Winged adult aphids are strongly attracted to yellow and orange-yellow colors, and yellow boards coated with sticky substances like 10号机油 can be used to trap and kill them. The size of the yellow board is usually 15-20 centimeters square, placed or hung between vegetable rows at the same level as the vegetables.
2. Silvergrey film to repel aphids. Silvergrey has a strong repelling effect on aphids, and silvergrey plastic strips can be hung in the field or silvergrey mulch can be used to cover vegetables. To control aphids in autumn Chinese cabbages, a 0.5-meter-high arch shed can be immediately set up after sowing, with a silvergrey plastic film pulled every 0.3 meters both horizontally and vertically, covering for about 18 days.
3. Laundry detergent to kill aphids. The main component of laundry detergent is sodium dodecylbenzenesulfonate, which has a strong contact-killing effect on aphids. Therefore, a solution of 400-500 times laundry detergent can be used to kill aphids, using 60-80 kilograms per mu, sprayed 2-3 times consecutively.
4. Plant-based methods to kill aphids. ① Tobacco is ground into a fine powder and mixed with a small amount of lime powder, then scattered; ② Chili peppers or wild wormwood are soaked in water for 24 hours, filtered, and then sprayed; ③ Castor leaves are crushed and scattered, or soaked in water at a ratio of 1:2, boiled for 10 minutes, filtered, and then sprayed; ④ Peach leaves are soaked in water for 24 hours, a small amount of quicklime is added, filtered, and then sprayed.
5. Plant-based methods to repel aphids. The smell emitted by scallions is repelling to aphids, and if planted together with other vegetables, it can reduce the density of aphids and alleviate the damage caused by aphids to vegetables.
6. Destroying the source of pests. Hollyhocks, pomegranates, and withered grass near the vegetable fields, as well as the residual stems and leaves after vegetable harvest are the main overwintering hosts of aphids. Therefore, before winter, during winter, and in spring, it is necessary to thoroughly clear the weeds near the vegetable fields or spray pesticides on hosts such as hollyhocks and pomegranates in early spring.
7. Protecting natural enemies. The natural enemies of aphids include seven-spot ladybirds, green lacewings, and hoverflies, which should be protected and utilized.
The above methods introduced for the non-harmful control of vegetable aphids are for your reference.