论文部分内容阅读
为了解绿盲蝽对其重要果树寄主冬枣的为害特点,通过对各生长期叶、蕾、花、幼果等易受害部位接虫试验,研究绿盲蝽对冬枣的为害规律及其对冬枣坐果的影响。结果显示,不同生长期各部位的被害率和刺点数均随着接虫数的增加而增大。嫩叶期最幼嫩的部位顶芽和第1片叶被害率均为100%,第4、5片叶的被害率均为0;相同接虫密度下,花的刺点数显著高于蕾和幼果;花蕾并存时,花的刺点数显著高于蕾,而被害率无显著差异。花期受害后,坐果数显著降低,其中接1、2、3、4、5头绿盲蝽坐果数分别降低了49.49%、59.60%、84.85%、94.95%、94.87%。研究表明,绿盲蝽对冬枣的为害有明显趋嫩和趋花性,花期受害后对产量的影响最大,应加强对花、幼果期绿盲蝽种群的控制。
In order to understand the damage characteristics of Apodemus lucorum on its important fruit tree jujube, we studied the damage of Myzus persicae to winter jujube and its effect on jujube jujube fruit production by studying the susceptible parts such as leaves, buds, flowers and young fruits in different growth stages. Impact. The results showed that the damage rate and the number of stabbing points in different parts of the growing season increased with the increase of the numbers of picked insects. The damage rate of the top bud and the first leaf of the young leaves in the young leaves was 100%, and the damage rate of the fourth and fourth leaves was 0. The spikes of the flowers were significantly higher than those of the buds Young fruit; flower buds coexist, the flower thorn point was significantly higher than the bud, but no significant difference in the rate of damage. After flowering, the number of fruit set decreased significantly. The fruit number of 1, 2, 3, 4 and 5 green stink bug decreased 49.49%, 59.60%, 84.85%, 94.95% and 94.87% respectively. Studies have shown that Lygus stink bug on Jujube jujube significantly tendering tendentious and trend of flowers, flowers after the impact on the yield the greatest impact should be to strengthen the flowering, young fruit stage Apolygus population control.