Chickpea cyst nematode (Heterodera ciceri) is a major pest of chickpea in countries overseas where it causes up to 100% yield loss. Chickpea is the main host, but it also damages a number of other legume species. Soil-borne nematodes attack the roots of plants, causing stunting and yellowing of crops.
Since eggs can survive in soil within the cyst for five to ten years without a host, the infestation is long term. Cysts can spread in plant material or soil, so they can be carried by wind, water, farm machinery, vehicles, footwear and animals.
The first signs of cyst nematodes are small circular areas in the crop that appear water stressed or are undergoing early senescence (biological aging). Symptoms are most noticeable at flowering, with a reduction in flower and pod numbers and small or no seed in pods if severely infested. Symptoms spread outwards over time.
Plants are typically stunted and yellow, with roots lacking nodules. Lemon shaped cysts (that contain eggs) may be attached to the roots, but are easily detached into the surrounding soil.
Protect your farm from exotic plant pests by checking crops frequently. Make sure you are familiar with the symptoms of common plant pests and diseases so you can tell if you see something different.
If you suspect soil borne diseases or nematodes in your chickpea crops, limit movement into and out of affected paddocks.
Protect your farm from exotic plant pests by checking crops frequently. Make sure you are familiar with the symptoms of common plant pests and diseases so you can tell if you see something different.
If you suspect soil borne diseases or nematodes in your chickpea crops, limit movement into and out of affected paddocks.