![](http://assets.echocommunity.org/book/af0d047c-88c2-4820-bca6-135d173ccc0b/green-methods-catalog-for-the-world-ours-and-theirs_thumbnail.jpg?w=400)
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
Maelezo ya Uchapishaji
- Limechapishwa: 1995
- Mchapishaji: Green Spot
- Dewey Decimal: 628
- Maktaba ya ECHO: 628 GRE