The influence of constant temperature on population growth rates of the cassava mealybug, Phenacoccus manihoti

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dc.creatorLema, K.M.
dc.creatorHerren, H.R.
dc.date1985-08
dc.date2018-08-09T06:40:43Z
dc.date2018-08-09T06:40:43Z
dc.date.accessioned2026-06-27T16:00:34Z
dc.descriptionLife table studies were conducted to assess the effect of constant temperature on the rate of population growth of the cassava mealybug, Phenacoccus manihoti Matile‐Ferrero. Four temperatures, between 20 and 30.5 °C, were tested. An inverse relationship was observed between temperature and most demographic parameters. The intrinsic rate of natural increase (rm) increased from 0.1 at 20 °C to 0.2 at 27 °C and 30.5 °C. The net reproductive rate varied between 426.3 at 30.5 °C and 584.7 at 20 °C. The mealybug population reached 50% mortality after 37.5, 21.5, 19.0 and 19.0 days respectively at 20, 23.5, 27 and 30.5 °C. The results indicate that P. manihoti can persist and increase in numbers within the range between 20 and 30.5 °C.
dc.identifierhttps://hdl.handle.net/10568/96442
dc.identifier.urihttp://hdl.handle.net/123456789/119911
dc.languageen
dc.rightsLimited Access
dc.sourceLema, K.M. & Herren, H.R. (1985). The influence of constant temperature on population growth rates of the cassava mealybug, Phenacoccus manihoti. Entomologia Experimentalis et Applicata, 38(2), 165-169.
dc.subjecttemperature
dc.subjectgrowth rate
dc.subjectcassava
dc.subjectphenacoccus manihoti
dc.subjectlife tables
dc.subjectmanihot esculenta
dc.titleThe influence of constant temperature on population growth rates of the cassava mealybug, Phenacoccus manihoti
dc.typeJournal Article

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