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以新疆生产建设兵团第二师21团制干辣椒种植基地为研究对象,采用定时定点系统调查的方法,研究新疆焉耆垦区辣椒病毒病发生规律以及气候条件、蚜虫等因素对辣椒病毒病发生的影响,同时通过田间药效试验,筛选对辣椒病毒病有良好防效的药剂。结果表明:辣椒病毒病发生初期为5月下旬,6月下旬至7月下旬为病毒病的快速发展期,8月上旬至9月下旬为发生高峰期;平均气温在20~25℃时利于病毒病的发生,在发病率快速增加期降雨量增加会抑制蚜虫数量从而抑制病毒病,但累计降雨量与病毒病发生呈正相关;蚜虫发生高峰期与发病率快速增加期基本吻合,蚜虫是焉耆垦区辣椒病毒病的重要传播介体;在病毒病发生初期喷施6%低聚糖素水剂400倍液,第2次喷药2周后防效可达到80.16%,且不产生药害,防效明显高于其它3种药剂,可推荐使用于辣椒病毒病的防治。
Taking the production bases of the second group of Xinjiang Production and Construction Corps, the 21th regiment of dried pepper plantation as the research object, we studied the regularity of the occurrence of pepper virus disease and the influence of climatic conditions, aphids and other factors on the occurrence of pepper virus disease in Yanqi Reclamation Region At the same time, through the field efficacy test, the screening of pepper virus disease have good control effect of the agent. The results showed that the early period of pepper virus disease occurred in the late May, late June to the end of July, which was the rapid development of virus disease, and peaked from early August to late September. The mean temperature was at 20-25 ℃, The occurrence of disease, the rapid increase in incidence of rainfall will inhibit the number of aphids and thus inhibit the virus disease, but the cumulative rainfall was positively correlated with the occurrence of viral diseases; the peak of aphids and the rapid increase in the period is basically consistent with the aphids Yanqi reclamation area Pepper virus disease, an important medium for transmission; early in the virus disease spraying 6% oligomeric solution of 400 times the liquid, 2 weeks after spraying 2 weeks control effect can reach 80.16%, and does not produce phytotoxicity, prevention Effectively higher than the other three kinds of agents, can be recommended for the prevention and treatment of pepper virus disease.