The population dynamics of the white peach scale and its parasitoids in a mulberry orchard in Campania, Italy

P. A. Pedata, Martha S Hunter, H. C J Godfray, G. Viggiani

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

White peach scale, Pseudaulacaspis pentagona (Homiptera: Diaspididae), was a serious pest of mulberry Morus alba until it was the subject of a successful biological control programme. The authors sampled white peach scale in an unmanaged mulberry orchard in coastal Campania over a 17 month period to measure the impact, relative abundance, and interactions of the parasitoids in the absence of pesticides. Mean densities of white peach scale varied with month from 3-15/9 cm2 on primary (interior) branches and 15-100/1.5-2m secondary (exterior) branch. The generalist ectoparasitoid Aphytis proclia was most abundant, followed by two specialist endoparasitoids, Encarsia berlesei and Pteroptrix orientalis (all Hymenoptera: Aphelinidae). Parasitism on primary branches was inversely density-dependent, but was density-independent on secondary branches. Low levels of superparasitism were generally observed in E. berlesei and P. orientalis (0-6%), but were higher in A. proclia (0-21%). Multiple parasitism of hosts by E. berlesei and A. proclia was fairly common. -from Authors

Original languageEnglish (US)
Pages (from-to)531-539
Number of pages9
JournalBulletin of Entomological Research
Volume85
Issue number4
StatePublished - 1995
Externally publishedYes

Fingerprint

Pseudaulacaspis pentagona
Encarsia berlesei
mulberries
parasitoids
orchards
population dynamics
Italy
Aphytis
multiparasitism
endoparasitoids
superparasitism
Diaspididae
Aphelinidae
Morus alba
parasitism
biological control
pesticides
Hymenoptera
pests

ASJC Scopus subject areas

  • Insect Science

Cite this

The population dynamics of the white peach scale and its parasitoids in a mulberry orchard in Campania, Italy. / Pedata, P. A.; Hunter, Martha S; Godfray, H. C J; Viggiani, G.

In: Bulletin of Entomological Research, Vol. 85, No. 4, 1995, p. 531-539.

Research output: Contribution to journalArticle

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