Assessment of Potential Methods of Measuring Parasitism by Brachymeria intermedia (Nees) (Hymenoptera: Chalcididae) of Pupae of the Gypsy Moth

1992 ◽  
Vol 21 (2) ◽  
pp. 394-400 ◽  
Author(s):  
Juli R. Gould ◽  
Joseph S. Elkinton ◽  
Roy G. Van Driesche
Keyword(s):  
Gypsy Moth ◽  
Potential Methods ◽  
Brachymeria Intermedia

An Overwintering Site of the Gypsy Moth Parasite, Brachymeria intermedia 12

1978 ◽  
Vol 7 (5) ◽  
pp. 782-782 ◽  
Author(s):  
Michael G. Waldvogel ◽  
Mark W. Brown
Keyword(s):  
Gypsy Moth ◽  
Brachymeria Intermedia ◽  
Overwintering Site

BRACHYMERIA INTERMEDIA (HYMENOPTERA: CHALCIDIDAE) PARASITIZING GYPSY MOTH IN MAINE

1971 ◽  
Vol 103 (5) ◽  
pp. 654-656 ◽  
Author(s):  
David E. Leonard
Keyword(s):  
New England ◽  
Gypsy Moth ◽  
Pest Species ◽  
Natural Spread ◽  
Wide Range ◽  
Northern New England ◽  
Brachymeria Intermedia ◽  
Artificial Introduction

AbstractBrachymeria intermedia (Nees), an introduced parasite of the gypsy moth, was recovered from gypsy moth pupae collected in Fryeburg, Maine (latitude 44°). The recovery of this parasite in Maine shortly after it was reported established on gypsy moth in Connecticut suggests that B. intermedia is rapidly expanding its range. The wide range of hosts attacked by the parasite, and its occurrence in northern New England, make it a promising potential biotic agent on a variety of northern pest species of lepidopterans, either through natural spread or by artificial introduction.

Sex ratio regulation in Brachymeria intermedia, a pupal gypsy moth parasitoid

1986 ◽  
Vol 64 (7) ◽  
pp. 1412-1415 ◽  
Author(s):  
M. A. Mohamed ◽  
H. C. Coppel
Keyword(s):  
Sex Ratio ◽  
Gypsy Moth ◽  
Intraspecific Competition ◽  
Host Density ◽  
Host Size ◽  
Male Density ◽  
Brachymeria Intermedia ◽  
Ratio Variables

The solitary pupal gypsy moth endoparasitoid, Brachymeria intermedia (Nees) (Hymenoptera: Chalcididae), regulates the sex ratio of its progeny such that the ratio is generally female skewed. Parents with a male-skewed sex ratio produce progeny that are female biased more than parents with a female-skewed sex ratio. Variables such as host size, host density, and intraspecific competition played no role in determining the sex ratio of the progeny. We conclude that sex ratio regulation of the progeny in this species is a function of male density.

scholarly journals Potential Differences and Methods of Determining Gypsy Moth Female Flight Capabilities: Implications for the Establishment and Spread in Novel Habitats

Forests ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 103
Author(s):  
Vivek Srivastava ◽  
Melody A. Keena ◽  
Galen E. Maennicke ◽  
Richard C. Hamelin ◽  
Verena C. Griess
Keyword(s):  
North America ◽  
Gypsy Moth ◽  
Lymantria Dispar ◽  
Urban Environments ◽  
Introduced Populations ◽  
Gypsy Moths ◽  
Asian Gypsy Moth ◽  
Dispersal Capability ◽  
Other World ◽  
Potential Methods

The introduction of the Asian gypsy moth into novel environments continues with frequent interceptions in North America. There is a concern that these subspecies will pose a greater threat to the forests and urban environments of North America than the established gypsy moths (Lymantria dispardispar L.), due to their greater capacity for female flight. Asian gypsy moth populations vary in many key traits, including female flight capabilities. The potential impacts of female flight, in combination with the other key traits, on the ecology and spread of this insect are first discussed in this communication. This also provides the first review of most of the current literature on the variations in flight capability and flight distance of gypsy moth populations, as well as variation in other traits of concern and the potential methods of identification, with special attention paid to the Asian subspecies Lymantria dispar japonica Motschulsky and Lymantria dispar asiatica Vinkovskij. There are currently good tools for identifying the general origin of introduced gypsy moth populations, but these do not provide enough information to effectively manage introductions. Gypsy moth key traits differ among populations, even within each subspecies of the gypsy moth, so introduction of gypsy moths from other world areas into locations where the gypsy moth is already present could result in unwanted changes in gypsy moth biology. It also appears that the introduction of flight-capable females could enhance a population’s dispersal capability and require modifications to management protocols used for flightless females. Therefore, rapid tools to assess key traits in introduced populations are needed to adequately plan for, or deal with, new introductions into novel habitats.

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