How did the red spider on the mosaic form?

Red spider overwinters mainly with eggs or fertilized female mites in plant branches, fallen leaves and shallow soil cracks around rhizosphere. The following spring, the temperature rose, plants began to sprout and grow, and overwintering female adult mites began to move. After unfolding the leaves, turn to the leaves, first on both sides of the main vein on the back of the leaves, and gradually spread the leaves from several small groups. When it happens in large quantities, it crawls on the surface of plants and spreads by the wind. Under normal circumstances, it reaches a peak in mid-May, and the peak appears in July and August, especially from late June to early July. Often make all the leaves turn yellow and white. It takes an average of 65,438+00 to 65,438+05 days for this mite to complete its first generation. It can reproduce both bisexual and parthenogenetic. Female mites mate only once in their lives, while male mites can mate many times. The emergence time of overwintering female adult mites is closely related to the nutritional status of the host itself. The greater the harm to the host, the worse the nutritional status, and the earlier the wintering mites appear; On the contrary, until the first ten days of 1 1, someone did harm.

Second, indoor flowers and plants

All the flowers and plants outside, whether they are taken back to cut branches and leaves or ready-made potted flowers bought at the flower market, may take Starscream home.

Be sure to observe carefully. If there are white spots on the surface of the leaves (symptoms after the leaves are sucked away by the red spider), insist on not taking them home. Potted flowers generally use pesticides, and sometimes they can't be seen when they are bought back. If white spots appear on the leaves after 7- 10 days, it means that the original red spider has relapsed.

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