Seasonal development and distribution ofUnaspis euonymi (Comstock) onEuonymus japonica L. shrubs

Savopoulou-Soultani, Μ.

doi:10.1007/bf01996878

Cited by 1 publication

(2 citation statements)

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“…The biology of U. euonymi on euonymus in Ankara is similar to the other research results (Stimmel 1979, Gill et al 1982, Cockfield and Potter 1987, Kosztarab and Kozár 1988Savopoulou-Soultani 1996, Schmutterer 1998. Euonymus scale undergoes two generations per year and overwinters as mated, second-generation, adult females.…”

Section: Discussionsupporting

confidence: 90%

“…Crawlers of the second generations were detected at the end of July, the 2 nd -instar nymphs in middle of August, and the adults from the end of September until the following spring (May) in Ankara. In Greece, Savopoulou-Soultani (1996) found crawlers of the 1st generation at the beginning of May, and those of the 2nd generation in middle of July. In the USA, the timing of the generations varies according to the region but they are generally observed between May and July (Gill et al, 1982).…”

Section: Discussionmentioning

confidence: 99%

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Biology of the Euonymus scale Unaspis euonymi (Hemiptera: Diaspididae) in Urban Areas of Ankara, Turkey

Özlem;ÜLGENTÜRK¹

2006

Tarım Bilimleri Dergisi

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Abstract:Unaspis euonymi is an important pest of Euonymus plants in parks and gardens of Ankara. In this study, the biology of U. euonymi was investigated in 2002 and 2003. The euonymus scale overwintered as mated adult females and had two generations per year. Crawlers of the first generation were present from midMay to mid-June and those of the second generation during July. The maximum number of eggs counted in a female body was 70,8; the greatest number laid in a day was 10,8. Adult females were more abundant on the branches than the leaves. In contrast, adult males were more abundant on leaves than on branches. The number of predator species (Coccinellidae: Adalia bipunctata (L.), Chilocorus bipustulatus (L.), Exochomus quadripustulatus (L.): Nitidulidae: Cybocephalus sp.; Neuroptera: Chrysoperla sp.) was low and inefficient.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 99%