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aphids in chickpeas

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Catalogue: GRDC Updates
Minimise risk of virus by retaining stubble, planting on time and at optimal rate, controlling weeds and ensuring adequate plant nutrition.. These results and a recent report of a closely related polerovirus from Tasmania suggest that it has a very wide geographical range... Soil tests in one 2012 salt affected crop of PBA HatTrick south of Walgett showed chloride levels of 1,770 mg/kg (1:5 H2O) and EC se of 9.8 dS/m at 15-60cm...
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Catalogue: GRDC Updates
Chickpea varieties selecting horses for courses.. Regardless of variety, best agronomic practices are needed to ensure maximum yields are achieved in any given environment and season... Breeding trials and National Variety Trial (NVT) results help indicate specific adaptation even within a region...
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Catalogue: GRDC Research Summaries
The only available management options for other major pests, particularly podsucking bugs and podborers, have the potential to derail IPM because they are highly disruptive to beneficial insects... Additional major IPM issues are the ever present resistance threat to the new generation pesticides targeting Helicoverpa armigera, the eventual likely deregistration by the APVMA of dimethoate (the only effective mirid and aphicide in grain crops), and the ongoing need for multi-pest IPM to reduce the risk of silverleaf whitefly (SLW)... Ongoing RD&E is clearly needed to address these issues and to continually improve and maximise the adoption of IPM throughout the GRDC Northern Region...
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Catalogue: GRDC Media
Northern chickpea growers are advised to sow at optimal seeding rates, irrespective of sowing date, to ensure early canopy closure and minimise the risk of viruses... Dr Andrew Verrell, NSW Department of Primary Industries (NSW DPI) research agronomist says recent research supported by the Grains Research and Development Corporation (GRDC) shows growers should sow chickpeas at optimal seeding rates - irrespective of sowing date... Dr Verrell says there are more than 14 species of virus that naturally infect chickpeas and are spread by airborne insects, particularly aphids...
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Catalogue: GRDC Research Summaries
A major constraint to the grains industry is the pressure imposed by necrotrophic pathogens (ie pathogens which actively kill host tissue as they colonize and thrive on the contexts of dead and dying cells) and insect pests... R. solani is difficult to control by traditional methods as its broad host range makes crop rotations ineffective, there is an absence of strong resistance in crops and fungicide are often ineffective... The work will include sequencing and assembling the genome of R. solani AG8, the strain causing the greatest impact on Australian grain crops, and profiling the expression of plant and R. solani genes during infection of resistant and susceptible host plants...
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Catalogue: GRDC Updates
Table 1 : Trial details for the three TAI trials assessed for virus in chickpeas.. The proportion of plants with virus symptoms was highly significant for sowing date, variety and sowing date x variety (Fig. 2)... In Figure 2, varieties are listed in order of average proportion of plants with virus symptoms across the 4 sowing dates...
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