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1 December 2010 Bionomics of Scutellera perplexa (Westwood) (Hemiptera: Scutelleridae), a Sucking Pest of Jatropha with Descriptions of Immature Stages
S. Parveen, S. Khokhar, Md. Kamil Usmani, V. V. Ramamurthy
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Abstract

Scutellera perplexa (Westwood) was observed as a serious sucking pest of Jatropha curcas L. from Delhi and adjoining areas. As details were not previously available on its bionomics, studies were done between April 2007 and August 2009 under laboratory and field conditions. It remained active throughout the year and severe damage to foliage and developing fruits was observed between July and March. Population density was highest between September and November. The life cycle takes about 63.3±3.07 days: egg period lasted for 6.67±0.87 days with 98.87±2.24 per cent hatchability and nymphal durations of I, II, III, IV and V instar were 5.33±0.82, 7.95±0.68, 6.15±0.91, 7.54±0.76 and 9.69±1.18 days, respectively. A key to the identification of different instars is given.

S. Parveen, S. Khokhar, Md. Kamil Usmani, and V. V. Ramamurthy "Bionomics of Scutellera perplexa (Westwood) (Hemiptera: Scutelleridae), a Sucking Pest of Jatropha with Descriptions of Immature Stages," Entomological News 121(5), 401-408, (1 December 2010). https://doi.org/10.3157/021.121.0501
Received: 30 September 2009; Accepted: 21 June 2010; Published: 1 December 2010
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KEYWORDS
India
Jatropha
Life stages
Scutellera perplexa
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