The underground pests that harm the potato are mainly: ground tiger, cockroach, cockroach, golden worm, and tuber moth. The ground tiger is commonly known as the night snail, also known as the cutting root worm, which harms the crop with larvae. The main damage to the potato is the small tiger. The 1st to 2nd instar larvae endanger the young leaves of the seedlings. After 3 years of age, they are transferred to the roots and stems. 5-6 The age hazard is the heaviest, and the young stem can be bitten off the ground. It is a larva of the chafer. The larva harms the roots and tubers of the potato in the ground. It can bite the root into a numb shape. When it is serious, it will cause no seedlings in the field. Dozing in the night, sneak into the roots of the potato under the topsoil or bite the tender stems, causing the seedlings to die or lack of seedlings. The golden worm is a larva of the mites. In the soil, it often bites the roots and seedlings of the potato, and drills into the tubers to feed, so that the tubers lose their commercial value. Tuber moths damage leaves and tubers by larvae. When they damage the leaves, most of them invade from the veins of the veins. They enter the leaves and feed on the mesophyll, leaving only the upper epidermis of the leaves. The leaves of the loss are translucent, so they are also called rust insects. When the worms are damaged, the net meat is drilled from the buds of the tuber and bitten into the stalks, which seriously affects the quality.
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