Question: Which is the most important cultural method that decreases the Heterodera avenae population?
Options:
Crop rotation
Summer ploughing
Flooding
Fallowing
✅Explanation:
Crop rotation is the most effective cultural method for reducing Heterodera avenae (cereal cyst nematode) populations. This nematode has a narrow host range, primarily infecting cereal crops like wheat and barley. By rotating with non-host crops such as legumes, oilseeds, or vegetables, the nematode population is deprived of its primary food source and its numbers decline significantly.
Crop rotation is the most effective cultural method for reducing Heterodera avenae (cereal cyst nematode) populations. This nematode has a narrow host range, primarily infecting cereal crops like wheat and barley. By rotating with non-host crops such as legumes, oilseeds, or vegetables, the nematode population is deprived of its primary food source and its numbers decline significantly.