Note 23. GFRAS Good Practice Notes for Extension and Advisory Services
Published: September, 2016
Farmers and extension workers face a constant challenge in managing plant health problems. Biotic causes (pests and diseases) and abiotic causes such as low soil fertility lead to regular and often significant losses in crop production and quality. Diagnosis is made difficult by a diversity of causes and symptoms with multiple possible origins. Choosing the best management options needs careful consideration.