Journal of Economic Entomology (2018) 111, 595-602

Jih-Zu Yu, Bing Huei Chen, Ali Güncan, Remzi Atlihan, Ayhan Gökçe, Cecil L. Smith, Ebru Gümüs and Hsin Chi (2018)
Demography and mass-rearing Harmonia dimidiata (Coleoptera: Coccinellidae) using Aphis gossypii (Hemiptera: Aphididae) and eggs of Bactrocera dorsalis (Diptera: Tephritidae)
Journal of Economic Entomology 111 (2), 595-602
Abstract: We compared rearing Harmonia dimidiata (F.) (Coleoptera: Coccinellidae) on four combinations of Aphis gossypii Glover (Hemiptera: Aphididae), and eggs of Bactrocera dorsalis Hendel (Diptera: Tephritidae), using the age-stage, two-sex life table. The four combinations were: both larvae and adults were reared on aphids; larvae were reared on aphids and adults were reared on fresh fruit fly eggs; larvae were reared on lyophilized fruit fly eggs and adults were reared on aphids; and larvae were reared on lyophilized eggs and adults were reared on fresh eggs. The highest intrinsic rate of increase (r = 0.1125 d^-1) and net reproductive rate (R₀ = 260.7 offspring) were observed when both larval and adult stages of H. dimidiata were reared on A. gossypii. When B. dorsalis eggs were used as rearing media for larvae, adults, or both, the values of r and R₀ were significantly decreased. The lowest values (r = 0.0615 d^-1 and R₀ = 38.6 offspring) were observed when both larvae and adults were reared entirely on B. dorsalis eggs. Despite the lower r and R₀ values, our results showed that B. dorsalis eggs could be considered as an adequate, less expensive alternative diet for rearing H. dimidiata because of the time and labor savings resulting from the ease of preparation and the ability to store the eggs for timely usage. The mass-rearing analysis showed that the most economical rearing system was to rear larvae on A. gossypii and adults on B. dorsalis eggs.
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Link to article at publishers website
Database assignments for author(s): Hsin Chi, Ayhan Gökçe, Ali Güncan, Remzi Atlihan

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
rearing/culturing/mass production

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Aphis gossypii
Harmonia dimidiata (predator)	Aphis gossypii