Grasp the control of corn thrips

Recently, some farmers have reported that the corn seedlings are distorted and do not grow. According to a field survey, it was caused by a small insect called corn thrips.

Corn thrips is one of the main pests in corn seedling stage. It sucks corn leaf juice, secretes toxins and inhibits corn growth and development. A piece of silver-grey patch appeared on the leaves of the damaged plants. The leaves were punctured and chlorosis. As a result, the white spots and silver-white streaks on the leaves of the heart of the corn were partially covered. Some of the leaves were deformed and the heart was distorted. The shape of the pig tail was like a pig tail. Difficult to grow. Maize seedling stage is the most sensitive period of corn thrips damage. Once the damage is serious, the field will form a lack of seedlings, which will affect the corn yield.

Because this year's straw ban burning intensity, the larger the base of the insect source, together with the small size of the bursa is not easy to be found, often neglecting prevention and treatment; the current high temperature continues, but also conducive to the occurrence of thrips.

In order to control the damage of corn thrips, control should be carried out immediately as follows: spraying imidacloprid, thiamethoxam or 5% lambda-cyhalothrin microemulsion 20 ml, 2.2% methorate microemulsion 10-20 ml. Water 15-30 kg, spray treatment. It can not only effectively control corn thrips, but also treat pests such as Laodelphax striatellus.

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