昆虫在杂草生物防除中的应用

 在杂草的生物防除中,研究和应用得最早且证明效果最好的措施是利用昆虫防除杂草。迄今为止,全世界已有50多种昆虫成功地用于杂草的生物防除。本文着重介绍了利用昆虫防除仙人掌、豚草、紫茎泽兰、空心莲子草、马樱丹、黑点叶金丝桃等恶性杂草的情况,同时对其他杂草如南美槐叶萍、列当、凤眼兰、破木布和千里光等,也作了一般介绍。并指出了以虫除草的优缺点及要注意的问题。

The Applications of Insects in the Biological Control of Weeds

In the biological control of weeds, the measure which was first studied and applied, and which has also been proved effective is weed-control by insects. Up to now, more than 50 species of insects in the world have been successfully used in biological control of weeds to different degrees. This paper deals in detail with the control by insects of Cholla (Opuntia sp. ), Ragweed (Ambrosia sp. ) , Crofton Weed (Eupathorium adenophorum), Alligatorweed (Alternanthera philoxeroides), Common Lantana (Lantana canara) and Common St. Johnswort (Hypericum perforatum), and more generally with other weeds such as Salvinia molesta, Eriocereus martinii, Broomrape (Orobanche sp. ), Waterhyacinth (Eichhornia sp. ), Cordia Curassavica and Senecio jacobaea.