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chickpea disease north

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Catalogue: GRDC Updates
For example, at Dubbo 407 mm of rain fell on 68 days (39 days >1.0mm) between 01 June and 30 November, compared with a long-term average of 282 mm on 43 days (34 days >1.0mm)... The pattern encouraged rapid vegetative growth of crops and was ideal for the build-up and spread of the major chickpea pathogens... Ascochyta blight (AB, caused by Ascochyta rabiei ), Botrytis grey mould (BGM, caused by Botrytis cinerea ), Phytophthora root rot (PRR, caused by Phytophthora medicaginis ) and Sclerotinia rot (caused by Sclerotinia sclerotiorum and Sclerotinia minor ) were widespread and severe in many crops...
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Catalogue: GRDC Updates
For example, at Trangie 386 mm of rain fell on 54 days (40 days >1.0mm) between 01 June and 30 November, compared with a long-term average of 225 mm on 41 days (28 days >1.0mm)... The pattern encouraged rapid vegetative growth of crops and was ideal for the build-up and spread of the major chickpea pathogens... Ascochyta blight (AB, caused by Ascochyta rabiei ), Botrytis grey mould (BGM, caused by Botrytis cinerea ), Phytophthora root rot (PRR, caused by Phytophthora medicaginis ) and Sclerotinia rot (caused by Sclerotinia sclerotiorum and Sclerotinia minor ) were widespread and severe in many crops...
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Catalogue: GRDC Updates
For example, at Goondiwindi 416 mm of rain fell on 57 days (44 days >1.0mm) between 01 June and 30 November, compared with a long-term average of 263 mm on 34 days (26 days >1.0mm)... Ascochyta blight (AB, caused by Ascochyta rabiei ), Botrytis grey mould (BGM, caused by Botrytis cinerea ), Phytophthora root rot (PRR, caused by Phytophthora medicaginis ) and Sclerotinia rot (caused by Sclerotinia sclerotiorum and Sclerotinia minor ) were widespread and severe in many crops... Timely and thorough applications are critical...
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Catalogue: GRDC Updates
The pattern encouraged rapid vegetative growth of crops and was ideal for the build-up and spread of the major chickpea pathogens... Ascochyta blight (AB, caused by Ascochyta rabiei ), Botrytis grey mould (BGM, caused by Botrytis cinerea ), Phytophthora root rot (PRR, caused by Phytophthora medicaginis ) and Sclerotinia rot (caused by Sclerotinia sclerotiorum and Sclerotinia minor ) were widespread and severe in many crops... Timely and thorough applications are critical...
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Catalogue: GRDC Updates
The rainfall pattern encouraged rapid vegetative growth of chickpea crops and was ideal for the build-up and spread of the major chickpea pathogens... Ascochyta blight (AB, caused by Ascochyta rabiei ), Botrytis grey mould (BGM, caused by Botrytis cinerea ), Phytophthora root rot (PRR, caused by Phytophthora medicaginis ) and Sclerotinia rot (caused by both Sclerotinia sclerotiorum and Sclerotinia minor ) were widespread and severe in many crops... Timely and thorough applications are critical...
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Catalogue: GRDC Media
A damaging line-up of five crop pathogens can slash northern region chickpea yields when seasonal conditions are right but new prevention guidelines mean growers are better prepared... We advocate paddock selection to minimise phytophthora root rot as the first priority; then implementation of an appropriate ascochyta blight strategy based on rain forecasts and the level of varietal resistance," Dr Rainbow says. ".. Growers can use paddock selection to reduce inoculum by considering crop sequence, previous occurrence of diseases, proximity to crop residues, and herbicide history, he says...
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Catalogue: GRDC Updates
Long-term monoculture of a susceptible host results an increase in the numbers of microsclerotes in a paddock... Sclerotia of S. sclerotiorum germinate during cool, wet weather and either directly infect the base of plants at ground level or produce fruiting bodies in which ascospores are produced... The finding contrasts with recent work which shows that Fusarium thapsinum and F. andihazi are responsible for most cases of fusarium stalk rot in northern NSW and ...
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Catalogue: GRDC Factsheets
Controlling the major fungal diseases of chickpeas in the northern region requires an integrated approach to disease management and prevention... Although burning chickpea stubble reduces inoculum, it does not ensure freedom from AB or botrytis when chickpeas are next grown in that paddock... Poor-quality seed can lead to: seed-borne diseases caused by AB and botrytis; poor establishment and crop performance; reduced plant vigour (which increases susceptibility to soil-borne and foliar pathogens); patchy, uneven plant stands (increases susceptibility to weeds, aphids and viruses); uneven and delayed crop maturity (resulting in problems with desiccation timing and mixed grain samples); and lower yields from a combination of the above...
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Catalogue: GRDC Factsheets
Controlling the major fungal diseases of chickpeas in the northern region requires an integrated approach to disease management and prevention... Although burning chickpea stubble reduces inoculum, it does not ensure freedom from AB or botrytis when chickpeas are next grown in that paddock... Poor-quality seed can lead to: seed-borne diseases caused by AB and botrytis; poor establishment and crop performance; reduced plant vigour (which increases susceptibility to soil-borne and foliar pathogens); patchy, uneven plant stands (increases susceptibility to weeds, aphids and viruses); uneven and delayed crop maturity (resulting in problems with desiccation timing and mixed grain samples); and lower yields from a combination of the above...
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Catalogue: GRDC Media
Northern chickpea growers could incur additional disease management costs this year by failing to ensure the identity and purity of their varieties... NSW Department of Primary Industries (NSW DPI) plant pathologist Dr Kevin Moore recommended that growers obtain their seed from a registered seed merchant or implement a quality control system if retaining their own seed, to avoid accidental contamination or misidentification of a seed lot... "The best option is for growers to purchase seed from accredited seed merchants or their agencies to avoid varietal contamination and keep markets and disease management options secure - you can't manage what you don't know...
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