The Pesticide Expert
HerbiGuide provides information on weeds, pests and diseases in crops, pastures, horticulture and environmental situations to help you with crop protection decisions. It includes information on over 200 crops, 600 weeds, 100 insects and 250 diseases with solutions drawn from over 1000 herbicide, insecticide and fungicide products, covering some 300 active ingredients.
Weed identification using polyclave computer keys and plant images is also included for free.