In the late summer and early autumn, serious pests and diseases are more likely to occur on ginger. Once it is endangered, it will have a great impact on the final yield and quality of ginger. At present, the most common pests and diseases are ginger borer and ginger rotten neck disease. There are ginger ginger rickets, the following brief introduction to these three pests and prevention measures.
The ginger borer, also known as ginger borer, corn borer, lepidoptera, and codling moth, is one of the major insect pests that harm ginger. After the larvae hatched, the stems of the ginger were eaten and the dung was left at the wormholes. The larvae mainly concentrated on the upper part of the ginger stems for feeding, resulting in hollow stems of ginger stems and yellow wilting of the damaged stems, which was easily broken. Eggs are flat and oval, with several to several tens of granules forming egg masses, arranged in squamas and initially milky white with a gradual yellow-white color. Part of the egg before hatching is dark brown. Ginger rotten neck disease (ginger stalk rot) The main symptoms are: ginger stalk base appears watery, yellow-brown lesions, the tip of the lower plant leaves chlorosis yellow, and then extended to the leaf edge, and finally spread to the entire The leaves, which gradually expand toward the upper leaves, cause the whole yellow to fall down, the stems and stems to be softly rotted, giving off odors. Ginger rotten neck disease is a soil-borne disease, mainly with the help of rain, irrigation water, the initial infection and re-infection, when the soil humidity is relatively high, the temperature between 20 °C ~ 25 °C, the most suitable disease occurrence. Symptoms of Ginger Ginger Disease: Mainly invade ginger roots, underground tubers, and ground stems, especially underground tubers, with translucent water-stained, yellow-brown in the initial stage, and the internal tissues are rotted and odorized. The final disease tissue is dissipated, leaving only the epidermis. , You can squeeze rice water-like, milky white viscous bacteria pus. The victims of the aboveground stem were dark purple, and the internal tissues turned brown and rot. Finally, only the fibers remained. The leaves of the diseased plants turned yellow at the beginning, curled at the edges, and later the leaves wilted and the entire plant withered.
The specific prevention and control method of ginger borer: It is recommended to use Kangguang 3000 times solution or Pu Zun 1000 times solution or Odetium 6000 times solution uniform spraying in the egg hatching period or larval stage. In addition, the specific prevention and control methods for ginger rot and neck disease (stem rot) and ginger turbidity: using a Chinese-Australia mate before the onset or early onset (that is, 1,500 times the number of times + 600 times the amount of good times) or 46%. It can kill 1500 times +72% Kelu 600 times Irrigation, and spray the entire garden at the same time.
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