STATUS OF EUONYMUS SCALE IN MASSACHUSETTS FOURTEEN YEARS AFTER RELEASE OF CHILOCORUS KUWANAE(COLEOPTERA: COCCINELLIDAE)

The colonization of Chilocorus kuwanae (Silvestri) (Coleoptera: Coccinellidae) and Cybocephalus nipponicus (Endrody-Younga) (Coleoptera: Nitidulidae), introduced predators of euonymus scale, Unaspis euonymi L., was evaluated on evergreen euonymus scale, Euonymus japonica L., by regional and statewide surveying. This study determined the statewide distribution of the native parasites of euonymus scale, Aspidiotiphagus spp. and Encarsia spp. (Hymenoptera: Aphelinidae). Highest recovery incidences were from 18 of the 41 survey sites on 25 May. The survey established the survival and dispersal of C. kuwanae in metropolitan areas of Virginia with recoveries in 8 of the 12 cities.

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Suitability of Five Horticulturally Important Armored Scale Insects as Hosts for an Exotic Predaceous Lady Beetle1

Journal of Environmental Horticulture ◽

10.24266/0738-2898-11.1.28 ◽

1993 ◽

Vol 11 (1) ◽

pp. 28-30 ◽

Cited By ~ 1

Author(s):

Brenda C. Bull ◽

Michael J. Raupp ◽

Mark R. Hardin ◽

Clifford S. Sadof

Keyword(s):

Pupal Stage ◽

The United States ◽

Scale Insects ◽

Armored Scale ◽

Aspidiotus Nerii ◽

Pseudaulacaspis Pentagona ◽

Chilocorus Kuwanae ◽

San Jose Scale ◽

White Peach Scale ◽

Euonymus Scale

Abstract Chilocorus kuwanae (Sylvestri) was imported from Korea to the United States for release against the euonymus scale (Unaspis euonymi (Comstock)). Field observations suggest that C. kuwanae feeds on a number of other armored scale insects, including white peach scale (Pseudaulacaspis pentagona (Targionni-Tozzeti)) and obscure scale (Melanaspis obscura (Comstock)). However, such observations have not been rigorously examined under controlled conditions. Our laboratory investigations indicate that C. kuwanae survives and reproduces well on San Jose scale (Quadraspidiotus perniciosus (Comstock)), in addition to euonymus scale. Fecundity was reduced in adults fed white peach scale. Few larvae survived to adulthood when fed oleander scale (Aspidiotus nerii (Bouche)). Adults failed to reproduce on obscure scale; none of the larvae fed this host survived to the pupal stage.

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Euonymus Scale (Homoptera: Diaspididae) Effects on Plant Growth and Leaf Abscission and Implications for Differential Site Selection by Male and Female Scales

Journal of Economic Entomology ◽

10.1093/jee/83.3.995 ◽

1990 ◽

Vol 83 (3) ◽

pp. 995-1001 ◽

Cited By ~ 8

Author(s):

S. D. Cockfield ◽

D. A. Potter

Keyword(s):

Plant Growth ◽

Site Selection ◽

Leaf Abscission ◽

Male And Female ◽

Euonymus Scale

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Predatory Capability of Chilocorus kuwanae (Silvestri) (Coleoptera: Coccinellidae) for Saissetia coffeae (Walker) (Hemiptera: Coccidae)

Korean journal of applied entomology ◽

10.5656/ksae.2015.10.0.055 ◽

2015 ◽

pp. 437-442 ◽

Cited By ~ 1

Author(s):

Hye Young Jin ◽

◽

Tai Hyeon Ahn ◽

Bong Woo Lee ◽

Hye Jeong Jun ◽

...

Keyword(s):

Chilocorus Kuwanae

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INSECTICIDE MANAGEMENT OF EUONYMUS SCALE ON CONTAINERIZED PLANTS, 2009

Arthropod Management Tests ◽

10.4182/amt.2011.g11 ◽

2011 ◽

Vol 36 (1) ◽

Author(s):

Steven D. Frank

Keyword(s):

Euonymus Scale

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THE ODOUR OF COCCIDAE

The Canadian Entomologist ◽

10.4039/ent3187-4 ◽

1899 ◽

Vol 31 (4) ◽

pp. 87-88

Author(s):

W. G. Johnson

Keyword(s):

Scale Insects ◽

Euonymus Scale

I have been much interested in reading the notes upon the odour of scale insects by Professors Webster and Cockerell in the January and February issues of this journal. Durning my inspections in orchards and nurseries I have frequently detected the odour emitte by Aspidiotus perniciosus, mentioned by Webster, especially where the trees were badly infested, and have wondered what relationship it bore to the species. I have detected the most pronounced odours, however, in the genera Chionaspis and Lecanium. The odour produced by the Euonymus scale, Chionaspis euonymi, is very unpleasant to some persons. It is most marked upon badly infested, freshly cut twigs. If they are left in a tightly closed room for a few hours, the air will become very foul.

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