30 Jul Insect Pests of Sorghum and Its Management
ज्वार की फसल के कीट-पतंग कौन से है तथा उनका प्रबंधन कैसे करें। Sorghum is an important world crop, used for food (as grain and in sorghum syrup or "sorghum molasses"), fodder, the production of alcoholic beverages, and biofuels. Most varieties are drought- and heat-tolerant, and are especially important in arid regions, where the grain is one of the staples for poor and rural people. Sorghum bicolor is an important food crop in Africa, Central America, and South Asia and is the "fifth most important cereal crop grown in the world. The growers must be prepared to scout and prevent injury from insects. However, a proper insect pest management program will minimize losses to insects and ensure appropriate insecticide use. Insect pest of sorghum and its management: 1. Sorghum Shoot fly: Atherigona soccata Damage: Damage occurs 1-4 weeks after seedling emergence. The damaged plants produce side tillers, which may also be attacked. The shoot fly’s entire life cycle is completed in 17-21 days. In India, shoot fly populations begin to increase in July, peak in August-September, and then decline. Infestations are especially high when sorghum planting is staggered due to erratic rainfall. Infestation is normally high in the postrainy-season crop, which is sown in September-October. Temperatures above 35oC and below 18oC reduce shoot fly survival. Management:...