Rogers, J.D. and Ward, A.L. and Wightman, J.A. (2005) Damage potential of two Scarab species on groundnut. International Journal of Pest Management, 51 (4). pp. 305-312.
Article Link(s): http://dx.doi.org/10.1080/09670870500399866
Publisher URL: http://www.informaworld.com/smpp/home~db=all
The damage potential of two phytophagous scarab larvae on groundnut (peanut) yield was determined. Holotrichia serrata, a root and pod feeding species from southern India, was studied in microplots while the damage potential of Heteronyx piceus, a pod feeder from Queensland, Australia, was determined by analysis of on-farm chemical-rate trials. H. serrata larva reduced groundnut yield by an average of 7.52 g/ larva. In crops yielding less and more than 1900 kg ha-1, H. piceus reduced yield by 4.20 g and 1.43 g/ larva, respectively. These damage potential estimates were used to determine provisional economic injury levels (EIL). For H. piceus, the provisional EIL is 1.67 and 4.91 larvae/ row-metre in crops yielding less and more than 1900 kg/ha, respectively. For H. serrata, the provisional EIL is one H. serrata larva in 7.1 m2. As more than 70% of southern India groundnut fields have Holotrichia populations greater than 1 larva in 1.35 m2, more widespread use of chlorpyrifos seed dressing of groundnut is likely to produce regional economic benefits.
|Corporate Creators:||Department of Employment, Economic Development and Innovation (DEEDI), Agri-Science, Crop and Food Science|
|Business groups:||Agri-Science, Crop and Food Science|
|Additional Information:||Author version © Queensland Department of Primary Industries and Fisheries. Reproduced in accordance with the copyright policy of the publisher. © Taylor & Francis. Access to published version may be available via Publisher’s website|
|Keywords:||Heteronyx piceus; Holotrichia serrata; Coleoptera; Scarabaeidae; yield loss; peanut; economic injury level.|
|Subjects:||Science > Zoology > Invertebrates > Insects|
Plant culture > Fruit and fruit culture > Nuts
Plant pests and diseases > Individual or types of plants or trees
|Deposited On:||06 Jun 2006|
|Last Modified:||26 Oct 2011 00:31|
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