This pest in the garden remains until winter

With the advent of the early winter season, most of the pests in the garden have entered the wintering dormancy period, and the harm to garden plants has gradually decreased, but sometimes, some stubborn pests are found on the plants to "linger" until winter, and aphids are a typical of them!

[1] Hazards of aphids:

Aphids often cluster in young leaves, shoots, buds and other parts of the pest, sucking sap, aphid infested plants have a variety of different symptoms, such as reduced growth rate, leaf spots, yellowing, stunted growth, leaf curls, reduced yield, wilting and death. In addition, a large amount of dense dew secreted by aphids, after staining the branches and leaves, will induce bituminous coal disease, and some species can also produce galls, and aphids are also the propagators of plant viruses.

【2】Several common aphid species:

1, Pine aphid: more than 10 generations in 1 year, its annual activity hazards from March, can continue until the beginning of November and winter.

2, peach aphid: the most common harm on the plant is aphid, when the spring temperature reaches more than 6 °C, it begins to be active, at the end of April, the winged aphid migrates and breeds as a pest, until the end of autumn and early winter, there are still winged aphids migrating to the protected area.

3, the monthly season of long pipe aphid: the monthly season of long pipe aphid hazard period is also very long, in the northern region, often in March began to endanger, May-June and September-October for the peak of the harm. In the south, activities begin in February, with early and mid-June peaks, and another peak period between late August and November.

【3】How to treat aphid damage?

For the control of aphids, in general, it is still early detection and early prevention, because once the temperature drops in winter, the control effect of the agent is not so ideal, therefore, for the aphid hazard, before or at the beginning of the occurrence of the drug (recommended Qilin Guangzheng, Zhiru) spraying to eliminate its harm.