| 王林霞,田长彦,吕昭智.南疆棉田十一星瓢虫对棉蚜的生态控制[J].干旱地区农业研究,2006,(4):222~226 |
| 南疆棉田十一星瓢虫对棉蚜的生态控制 |
| The ecological control of Coccinella undecimpunctata Linnaeus over Aphis gossyph in the cotton fields in south Xinjiang |
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| DOI：10.7606/j.issn.1000-7601.2006.04.47 |
| 中文关键词: 十一星瓢虫 人工诱集 棉蚜生态控制 南疆 |
| 英文关键词:Coccinella undecimpunctata Linnaeus manual trap ecological control Aplid gossypii Glover |
| 基金项目:中国科学院知识创新塔里木河二期项目； 中国科学院知识创新工程项目(KZCX1-08-01) |
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| 中文摘要: |
| 通过对南疆尉犁县两处棉田,4个品种十一星瓢虫的种群动态、人工诱集和棉蚜防治效果测试观察,发现:在南疆不同品种的棉田中,十一星瓢虫是棉田棉蚜的主要天敌,约占棉田瓢虫总数的80%左右;十一星瓢虫与棉蚜种群数量呈显著的跟随关系,发生期比棉蚜滞后1周左右。人工诱集十一星瓢虫的数量与诱集箱放置的位置和箱内的诱集物有关。放置在棉田周围林带中的诱集箱诱集的十一星瓢虫数量最多,其次是棉田埂箱,棉田内诱集的数量最少;诱集箱放入蜂蜜和花粉蜜诱集的十一星瓢虫数量最多,放入花粉诱集的十一星瓢虫数量次之,不放任何诱集物诱集的十一星瓢虫数量最少。越冬后的十一星瓢虫早期释放到棉田中心蚜株上可以有效防治蚜虫危害,中心蚜株株高比未释放瓢虫处理的增高59.5%,果枝数增加20.3%、蕾数增加100%、铃数增加81.4%,单株产量增加81.1%。 |
| 英文摘要: |
| The paper studied the population dynamics,the technique of manual trap and the prevention effect of Coccinella undecimpunctata Linnaeus against aphid in the cotton fields of south Xinjiang.The results showed that Coccinella undecimpunctata Linnaeus was key natural enemy affecting the population dynamics of Aplid gossypii Glover in different cotton varieties.The number of dominant species was over 80%.The population of Coccinella undecimpunctata Linnaeus appeared obviously a following relation with Aplid gossypii Glover and lagged about one week later behind Aplid gossypii Glover.The traped number of Coccinella undecimpunctata Linnaeus was related to the location of the trap boxes and trap materials in boxes.The number of trapped Coccinella undecimpunctata Linnaeus in the boxes hanged on the trees of the forest belt around the cotton field,placed on the ridge of field and in the cotton field was the most,few and the fewest,respectively.The number of trapped Coccinella undecimpunctata Linnaeus in the honey boxes,pollen and honey mixture boxes,pollen boxes and control boxes varied from large to less.Released to the center aphis-cotton plant in field,the overwintered Coccinella undecimpunctata Linnaeus could prevent cotton plants against Aphis harm.Compared with cotton without release of ladybird,the height of the center aphis cotton,the fruit branch number,the bud number,the boll number and the yield per plant increased 59.5%,20.3%,100%,81.4%,and 81.1%,repectivly. |
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