Timely prevention of spring pests and diseases
(Baonghean.vn) -Currently, over 86,000 hectares of spring rice are being planted.tThe tillering and tillering period is in full swing. Other crops are also growing quite well. However, there have been many types of quite strong pests appearing, requiring active prevention measures from localities.
In addition to the leaf blast disease that has damaged some rice fields in most districts in the province, currentlybrown planthopper- white-backed planthoppers have also beenappearand harmfulaboveSome rice areas in the tillering perioddensityscattered, at high altitudes 1 - 3 individuals/m2. The whole province also has 176.5 hectares of rice damaged by nematodes, mainly concentrated in Hung Nguyen, Nam Dan and Vinh City with a common rate of damaged plants of 3 - 5%, in some high places 10 - 15%. Golden apple snails have arisen and damaged 58.2 hectares in Quy Hop district, Vinh City, Nam Dan, Tan Ky... with a common density of 3 - 5 snails/m2; high places 8 - 15 individuals/m2. The elephant beetle damaged about 80 hectares of rice during the tillering period in Quy Hop district. However, the density has decreased significantly compared to the previous period, commonly 5 - 7 insects/m2.2, at high altitude 10-15 individuals/m2Stem rot has also occurred and damaged over 74 hectares in Nam Dan district with the rate of infected plants reaching 5-10%. In some areas of direct-sown rice, root suffocation has occurred, and rice growth and development have been slow. Other pests such as thrips, grasshoppers, rats, green aphids, shoot borers, etc. have also occurred and caused minor, local damage in some areas.
Mr. Nguyen Tien Duc - Head of the Provincial Plant Protection Department, said: It is forecasted that in the coming time, the gradually warmer weather will create favorable conditions for many types of pests to arise and cause severe damage, especially leaf blast disease. When rice plants grow quickly, the air humidity is high, the sky is cloudy and foggy, the disease will easily arise and cause severe damage over a large area, especially on sandy soil, light soil, and planting susceptible varieties such as BC15, Thien Nguyen Uu, Khai Phong 1, Xi 23, IR1820,... and on fields with unbalanced fertilization and high nitrogen fertilization.White-backed planthopper, brown planthoppertend to gradually increase in density and scope of damage. In addition, objects such as elephant beetles, green aphids, mice, thrips, nematodes, golden apple snails, stem rot disease... will also continue to arise and cause damage.
According to the recommendations of the Plant Protection Department, to limit the harmful effects of pests on spring rice, localities and people need to strengthen field monitoring, paying special attention to monitoring objects such as white-backed planthoppers, brown planthoppers, blast disease, black-striped dwarf disease, etc. to have timely management measures. At the same time, strictly implement the recommendations and specific instructions of the Plant Protection Department in implementing measures to prevent and spray pests.
Phu Huong
