该书已不再出版。
This booklet is for commerical greenhouse growers, farmers, serious gardeners and anyone who wishes to maintain a low ecological profile by reducing their use of chemical pest-control substances. It includes the general principals of biological pest control and agents of biological pest control.
65 pages, illustrated
出版物详细信息
- 已出版: 1995
- 出版者: Green Spot
- Dewey Decimal: 628
- ECHO 图书馆: 628 GRE