What does the regulation specify regarding the use of strychnine?

The regulation specifies that strychnine is not allowed for weed control, which underscores the strict regulations surrounding the use of this toxic substance. Strychnine is a highly toxic alkaloid primarily utilized as a rodenticide and for certain pest controls. Its usage is limited to specific contexts where risks to non-target species and environmental impact can be controlled.

By prohibiting strychnine for weed control, regulations aim to prevent the accidental poisoning of beneficial plants, animals, and humans that may come into contact with treated areas. The toxicological properties of strychnine highlight the necessity of restricting its application to ensure safety in agricultural and environmental practices. This reinforces the importance of adhering to regulated substances to promote safer pest management strategies.

The other options suggest broader or less regulated uses of strychnine, which are inconsistent with current regulations that prioritize health and environmental safety.