Importance of occasional pests of rapeseed-mustard in punjab, India
The Rapeseed-Mustard, are among the major Rabi (winter) cash crops in Punjab, India. The crop area has been growing or squeezing in the state, depending upon the prevailing market prices. The incidence of occasional pests also affects the popularity of the crops with the farmers. Observations during the last more than 20 years show that, two occasional pests of the crops become serious pests in some years and inflict heavy losses. Both the pests, Bagrada hilaris Burmeister and Corniifrons ulceratalis Lederer,appear in very dry years, when the rain fall is scanty and the soil isdry and loose, which is ideal for these insects. C ulceratalis is a new record as pest on Rapeseed-Mustard crops in the world. It inflicts heavy damage to Eruca vesicaria in dry seasons, especially in south western zone of Punjab. Similarly in dry weather B. hilaris is so serious that the germinating crops are completely wiped out and the farmers have to sow the crop again. The population of these pests remains below economic thresholds when it rains some days before sowing or if it rains within a few days after crop germination.Integrated Pest Management developed to control these pests, include such simple but effective control measures as giving the first irrigation, as soon as possible after 3 weeks of sowing.
Oilseeds Bagrada hilaris Cornifrons ulceratalis Brassica juncea compestris carinata Painted bug cultural control irrigation
B.S.Sekhon
punjab Agricultural University Regional Research Station, Bathinda, Punjab, India
国际会议
第十二届国际油菜大会( The 12th International Rapeseed Congress)
武汉
英文
1504-1506
2007-03-26（万方平台首次上网日期，不代表论文的发表时间）