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当前位置: 首页 > 文章 > 赤眼蜂大量繁殖及其对于甘蔗螟虫的大田防治效果 昆虫学报 1962,11 (4) 409-414
Position: Home > Articles > SUGARCANE BORERS CONTROL BY TRICHOGRAMMA EVANESCENS WESTW. Acta Entomologica Sinica 1962,11 (4) 409-414

赤眼蜂大量繁殖及其对于甘蔗螟虫的大田防治效果

作  者：
蒲蛰龙;刘志诚
单  位：
中山大学生物系
摘  要：
利用赤眼蜂防治甘蔗螟虫,经长期研究试验及大面积生产实践的结果,放蜂区蔗螟卵寄生率提高1至10多倍,甘蔗枯心苗减少2-8成。绝大多数地区认为放蜂治螟有效。 繁殖赤眼蜂最好采取工厂生产的形式,在繁殖释放过程中,应注意下列事项:1.采用当地赤眼蜂品系作为繁殖对象。2.采用蓖麻蚕卵作为繁殖赤眼蜂的寄主。3.控制寄主卵内的寄生蜂数。4.使赤眼蜂在室外条件或变温条件下发育。5.避免赤眼蜂连续繁殖超过10代。6.蔗螟卵在田间未达最多时即开始放蜂。7.在广东珠江三角洲每年放蜂7-9次,每亩每次放蜂6,000-10,000头。8.采用重迭放蜂法。9.室内繁殖赤眼蜂及田间放蜂时都要用蜂蜜喂成虫。10.防御田间赤眼蜂天敌。11.在蔗田间种绿肥作物,使田间环境更适于赤眼蜂生存。
译  名：
SUGARCANE BORERS CONTROL BY TRICHOGRAMMA EVANESCENS WESTW.
作  者：
PU CHIH-LUNG;LIU CHIH-CHENG Department of Biology, Sun Yat-sen University Academy of Agriculture Science, Kwangtung
摘  要：
The utilization of Trichogramma evanescens Westw. to control sugarcane borers ona large scale in Kwangtung, Kwangsi and Fukien provinces began in 1959. In thecolonized sugarcane fields the parasitization of host eggs ranged from 60 to 97.52 per-cent, the "dead-hearts" of shoots from 0.21 to 9.9 percent and the bored joints from2.01 to 11.8 percent, while in the check fields the figures ranged from 0 to 48.6 percent,1.7 to 22.1 percent and 11.45 to 18 percent respectively. Colonized fields showedhigher percentage of parasitized eggs, lower percentage of "dead-hearts" of shoots andof bored joints as compared with the check field. In order to maintain the efficiency of Trichogramma evanescens in controlling sugar-cane borers, the following suggestions are made for the prolification and liberation of thisparasite. (1) Use the native strain of parasites as parent stock for prolification. (2)Use the eggs of Attacus cynthia ricini Boisd. as factitious host.(3) A ratio of one to oneor two to one for the parasites and the factitious host eggs during prolification is desirable.(4) Let the parasites develop outdoors or under the condition of fluctuating tempera-ture. (5) Do not continuously rear the parasites more than ten generations; renew theparent stock frequently. (6) Liberate the parasites in advance of the numerical climaxof the host eggs in the field. (7) In the Delta area of the Pearl River in Kwang-tung province, liberate the parasites in cane fields seven to nine times per year andliberate 6,000 to 10,000 female parasites each time for one mou. (8) Use the methodof overlapping liberation of parasites. (9) Feed the adults with honey. (10) Controlthe natural enemies of parasite in the field. (11) Plant green-manure crop as mixedcropping in the cane field to improve the environmental condition for the existence of

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