Relationship Between Susceptibility of Gypsy Moth Larvae (Lepidoptera: Lymantriidae) to a Baculovirus and Host Plant Foliage Constituents

1988 ◽  
Vol 17 (6) ◽  
pp. 952-958 ◽  
Author(s):  
Steven T. Keating ◽  
William G. Yendol ◽  
Jack C. Schultz
Keyword(s):  
Host Plant ◽  
Gypsy Moth ◽  
Plant Foliage

scholarly journals Development of gypsy moth (Lymantria dispar L) on the foliage of Quercus cerris L., Q. Petraea (matt) Liebl. and Q. Robur L. in the controlled conditions

2007 ◽  
pp. 55-67 ◽  
Author(s):  
Slobodan Milanovic
Keyword(s):  
Relative Humidity ◽  
Host Plant ◽  
Gypsy Moth ◽  
Lymantria Dispar ◽  
Environmental Conditions ◽  
Quercus Robur ◽  
Quercus Petraea ◽  
The Other ◽  
Study Results ◽  
Quercus Cerris

The development of Gypsy moth (Lymantria dispar L) was monitored in laboratory conditions, on the foliage of the species Quercus cerris L. Quercus petraea (Matt) Liebl. and Quercus robur L. The experiment was established in the controlled environmental conditions, at the temperature of 25?C, photoperiod 14:10 (day: night) and relative humidity 70%. The objective of the research was to determine the suitability of the study host plant species for gypsy moth development. The study results show that Gypsy moth caterpillars cultivated on Q. petraea foliage had a lower survival, higher number of moultings, longer preadult development and lower fecundity, which makes this species less suitable compared to the other two. Gypsy moth caterpillars cultivated on Q. cerris foliage had the highest survival degree the lowest number of moultings, the shortest preadult development and the highest fecundity, which makes this species the most favourable for gypsy moth development. Q. robur was between the former two species in this respect.

scholarly journals Gypsy moth genome provides insights into flight capability and virus–host interactions

2019 ◽  
Vol 116 (5) ◽  
pp. 1669-1678 ◽  
Author(s):  
Jing Zhang ◽  
Qian Cong ◽  
Emily A. Rex ◽  
Winnie Hallwachs ◽  
Daniel H. Janzen ◽  
...  
Keyword(s):  
Gene Ontology ◽  
Gypsy Moth ◽  
Lymantria Dispar ◽  
Draft Genome ◽  
Immunological Response ◽  
The United States ◽  
Muscle Adaptation ◽  
Phenotypic Differences ◽  
Plant Foliage ◽  
Asian Gypsy Moth

Since its accidental introduction to Massachusetts in the late 1800s, the European gypsy moth (EGM; Lymantria dispar dispar) has become a major defoliator in North American forests. However, in part because females are flightless, the spread of the EGM across the United States and Canada has been relatively slow over the past 150 years. In contrast, females of the Asian gypsy moth (AGM; Lymantria dispar asiatica) subspecies have fully developed wings and can fly, thereby posing a serious economic threat if populations are established in North America. To explore the genetic determinants of these phenotypic differences, we sequenced and annotated a draft genome of L. dispar and used it to identify genetic variation between EGM and AGM populations. The 865-Mb gypsy moth genome is the largest Lepidoptera genome sequenced to date and encodes ∼13,300 proteins. Gene ontology analyses of EGM and AGM samples revealed divergence between these populations in genes enriched for several gene ontology categories related to muscle adaptation, chemosensory communication, detoxification of food plant foliage, and immunity. These genetic differences likely contribute to variations in flight ability, chemical sensing, and pathogen interactions among EGM and AGM populations. Finally, we use our new genomic and transcriptomic tools to provide insights into genome-wide gene-expression changes of the gypsy moth after viral infection. Characterizing the immunological response of gypsy moths to virus infection may aid in the improvement of virus-based bioinsecticides currently used to control larval populations.

scholarly journals Host plant effects on the genetic variation and correlations in the individual performance of the Gypsy Moth

1998 ◽  
Vol 12 (1) ◽  
pp. 141-148 ◽  
Author(s):  
J. LazareviĆ ◽  
V. PeriĆ-Mataruga ◽  
J. IvanoviĆ ◽  
M. AndjelkoviĆ
Keyword(s):  
Genetic Variation ◽  
Host Plant ◽  
Gypsy Moth ◽  
Individual Performance ◽  
Plant Effects ◽  
The Individual

Attraction of the Gypsy Moth to Volatile Organic Compounds (VOCs) of Damaged Dahurian Larch

2012 ◽  
Vol 67 (7-8) ◽  
pp. 437-444 ◽  
Author(s):  
Jing Li ◽  
Sanna Valimaki ◽  
Juan Shi ◽  
Shixiang Zong ◽  
Youqing Luo
Keyword(s):  
Sex Pheromone ◽  
Volatile Organic Compounds ◽  
Host Plant ◽  
Organic Compounds ◽  
Gypsy Moth ◽  
Plant Volatiles ◽  
Flight Period ◽  
Dahurian Larch ◽  
Gypsy Moths ◽  
Volatile Organic

Olfactory responses of the gypsy moth Lymantria dispar (L.) (Lepidoptera: Lymantriidae), a major defoliator of deciduous trees, were examined in Inner Mongolia, China. We studied whether the gypsy moth adults are attracted by the major volatile organic compounds (VOCs) of damaged Larix gmelinii (Dahurian larch) foliage and compared the attractiveness of the plant volatiles with that of the synthetic sex pheromone. Our results indicated that the VOCs of the Dahurian larch were effective in attracting gypsy moth males especially during the peak flight period. The VOCs also attracted moths significantly better than the sex pheromone of the moth. Our study is the first trial to show the responses of adult gypsy moths to volatile compounds emitted from a host plant. Electroantennogram responses of L. gmelinii volatiles on gypsy moths supported our field observations. A synergistic effect between host plant volatiles and sex pheromone was also obvious, and bothcan be jointly applied as a new attractant method or population management strategy of the gypsy moth.

DIRECT, INDIRECT, AND RESIDUAL TOXICITIES OF INSECTICIDE SPRAYS TO WESTERN SPRUCE BUDWORM, CHORISTONEURA OCCIDENTALIS (LEPIDOPTERA: TORTRICIDAE)

1979 ◽  
Vol 111 (11) ◽  
pp. 1219-1226 ◽  
Author(s):  
Jacqueline L. Robertson ◽  
Nancy G. Rappaport
Keyword(s):  
Host Plant ◽  
Spruce Budworm ◽  
Choristoneura Occidentalis ◽  
Western Spruce Budworm ◽  
Plant Foliage ◽  
Insecticide Sprays

AbstractThe toxicities of acephate, aminocarb, carbaryl, chlorpyrifos, chlorpyrifos-methyl, methomyl, mexacarbate, permethrin, and trichlorfon to last instar western spruce budworm, Choristoneura occidentalis Freeman, were significantly altered by the presence of host-plant foliage. The pyrethroid permethrin was significantly more toxic when sprayed directly on fully exposed larvae than when first sprayed on foliage. However, all other toxicants were more toxic sprayed on foliage. A toxicologically-based method was used to assess the residual toxicities of the nine chemicals. Each chemical was applied to potted seedlings at its respective LD90-foliage, then weathered for up to 7 days. Significant differences in toxicity were related to both insecticide and weathering interval. The toxicities of carbaryl and permethrin were least affected by weathering.

scholarly journals Host plant effect on the activity of digestive enzymes of the gypsy moth caterpillars

2008 ◽  
pp. 127-142 ◽  
Author(s):  
Slobodan Milanovic ◽  
Jelica Lazarevic ◽  
Marija Mrdakovic ◽  
Milena Vlahovic ◽  
Zoran Miletic
Keyword(s):  
Host Plant ◽  
Gypsy Moth ◽  
Digestive Enzymes ◽  
Nutritive Value ◽  
Digestive Enzyme ◽  
Specific Protease ◽  
Digestive Enzyme Activities ◽  
Feeding Effects ◽  
Host Plant Effect ◽  
Metabolite Content

Insect growth and development depend on nutritive value and secondary metabolite content of their host plants. This influence may be exerted through changing the activity of digestive enzymes which further affects efficiency of conversion of ingested food. This paper represents the results of investigation of feeding effects on the leaves of three oak species (Quercus cerris, Q. robur and Q. petraea) on growth, development and digestive enzyme activities of the 4th instar gypsy moth larvae (Lymantria dispar L.). Compared to larvae fed on Q. cerris and Q. robur leaves, larvae fed on Q. petrea exhibited the lowest body mass, midgut protein content and specific protease activity. Specific amylase activity was significantly reduced in the midguts of larvae fed on Q. robur while host plant did not affect larval duration upon molting into the 4th instar. Concomitant chemical analyses of leaves given to the 2nd and 4th instar larvae was carried out in order to explain the obtained results.

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