Effect of Developmental Stage and Density of Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae) on the Predatory Performance of Four Coccinellid Predators

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Authors

  • Biological Control Laboratory, Division of Entomology, Indian Agricultural Research Institute, New Delhi 110 012 ,IN
  • Biological Control Laboratory, Division of Entomology, Indian Agricultural Research Institute, New Delhi 110 012 ,IN
  • National Research Center on Pomegranate, Solapur 413 255, Maharashtra ,IN

DOI:

https://doi.org/10.18311/jbc/2010/3592

Keywords:

Phenacoccus solenopsis, Hyperaspis maindroni, Cryptolaemus montrouzieri, Feeding Potential, Nephus regularis, Scymnus coccivora, Starvation Potential.

Abstract

The predatory performance of four coccinellid predators, viz., Hyperaspis maindroni, Cryptolaemus montrouzieri, Nephus regularis and Scymnus coccivora, was studied on Phenacoccus solenopsis under laboratory conditions at 27 ± 2°C and 65 ± 5% RH. The grubs of all the four predators preferred to prey upon second instar mealybugs followed by third instars and adults when given the choice and fourth instar grubs were the most voracious. The overall predation by the grubs of C. montrouzieri (170.40 mealybugs) was significantly higher than that of the rest of the species. The rate of predation was dependent on developmental period and per day consumption of grubs of all the stages decreased with increase in size of the mealybug. Mean number of P. solenopsis individuals consumed and number of eggs laid per day by the females of all the predators increased gradually with prey density from lower to higher densities, but at a decreased rate.

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Published

2010-06-14

How to Cite

Fand Babasaheb, B. B., Gautam, R. D., & Suroshe, S. S. (2010). Effect of Developmental Stage and Density of <I>Phenacoccus solenopsis</I> Tinsley (Hemiptera: Pseudococcidae) on the Predatory Performance of Four Coccinellid Predators. Journal of Biological Control, 24(2), 110–115. https://doi.org/10.18311/jbc/2010/3592

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Research Articles

 

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