REDIA (2016) 99, 219-223

Betul Simsek, Ismail Karaca and Ali Kayahan (2016)
Determination of developmental and life table parameters of Rhyzobius lophanthae Blaisdell (Coleoptera Coccinellidae) on three armored scale insects (Hemiptera Diaspididae)
REDIA 99, 219-223
Abstract: Scale insects are the most damaging pests of citrus production in Turkey. Rhyzobius lophanthae Blaisdell (Coleoptera: Coccinellidae), a polyphagous coccinellid, is one of the most important predators of these pests. In this study, the life tables of R. lophanthae on three different armored scale insects, Aonidiella aurantii (Maskell), Aspidiotus nerii Bouche, Chrysomphalus dictiyospermi (Morgan) (Hemiptera: Diaspididae), were produced. The study was conducted in a climate chamber under constant conditions of 26°C, 60% relative humidity and 16-hour photoperiod. The net reproductive rate (R0), intrinsic rate of increase (rm) and mean generation time (T0) were 36.027, 12.520 and 6.600 females/female/generation, 0.120, 0.061 and 0.041 females/female/day, and 30.005, 41.151, 45.826 days, respectively, when R. lophanthae was reared on A. nerii, C. dictiyospermi and A. aurantii, respectively. The doubling time (DT) and finite rates of increase (?) were 5.803, 11.286 and 16.832 days, 1.127, 1.063 and 1.042 individuals/female/day, respectively, when R. lophanthae was reared on A. nerii, C. dictiyospermi and A. aurantii, respectively.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Ismail Karaca

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Aonidiella aurantii		Turkey
	Aspidiotus nerii		Turkey
	Chrysomphalus dictyospermi		Turkey
Rhyzobius lophanthae (predator)	Aonidiella aurantii		Turkey
Rhyzobius lophanthae (predator)	Aspidiotus nerii		Turkey
Rhyzobius lophanthae (predator)	Chrysomphalus dictyospermi		Turkey