Root rots in pulse crops
Growing conditions in 2018 have caused stress in many pulses leading to root rot infection in numerous crops across South Australia. Crop species affected include lentil, faba bean, chickpea, vetch, lupin, lucerne and clover. This phenomenon is being investigated by Dr Tara Garrard at SARDI, in a SAGIT funded project, (S218) Survey Potential Emerging Pulse Root Diseases.
Could you be experiencing root rot in irrigated chickpeas?
Phytophthora root rot was prominent in irrigated spring sown chickpeas in 2017 in the south east region of the state. Growers who are seeing poor performing areas in spring sown chickpeas are encouraged to submit samples for pathogen identification.
3 pathogens seen affecting high rainfall areas and irrigated crops
In high rainfall areas we have been seeing:
Stressed plants from dry soils can be prone
Stressed plants growing in dry soils can be more prone to:
- Rhizoctonia root rot.
DNA sequencing detecting root pathogens
A number of root pathogens have been detected through DNA sequencing including Rhizoctonia, Fusarium, Aphanomyces, Pythium, root lesion nematode and Phytophthora species.
Send us your samples from irrigated crops!
Sample from 1-2 poor performing locations within the paddock, aim for 3-4 plants per location.
Contact Tara Garrard for more details: firstname.lastname@example.org
- Shake soil off plant roots and wrap in paper towel.
- Include cultivar, as well as location of the crop, along with contact details.
- Send package to:
Tara Garrard, Field Crop Pathology, SARDI
Locked Bag 100, Glen Osmond SA 5064