scispace - formally typeset
Search or ask a question
Topic

Infestation

About: Infestation is a research topic. Over the lifetime, 8308 publications have been published within this topic receiving 82305 citations.


Papers
More filters
Journal ArticleDOI
TL;DR: The results suggest that nearly all the studied infestations were started by a small propagule possibly consisting of a singly mated female and/or her progeny, or a female mated with multiple males that were highly related to her.
Abstract: Bed bugs (Cimex lectularius L.) are a resurgent pest worldwide and infestations within the United States are increasing at a rapid rate. Because of the physical and psychological discomfort inflicted by their blood feeding habits, and allergies and secondary infections associated with bites, bed bugs are recognized as a significant public health problem. Although bed bug infestations are spreading and becoming more prevalent, we have a poor understanding of their dispersal patterns and sources of infestation. To help fill this gap, we conducted a genetic study of 21 bed bug infestations from the eastern United States, nearly all of which came from single rooms within residences. We genotyped samples comprised of 8–10 individuals per infestation at nine polymorphic microsatellite loci. Despite high genetic diversity across all infestations, with 5–17 alleles per locus (mean = 10.3 alleles per locus), we found low genetic diversity (1–4 alleles per locus) within all but one of the infestations. The...

69 citations

Journal ArticleDOI
TL;DR: Even though there were records of ectoparasites throughout all the year, a higher intensity was observed during the spring months, most likely as a result of the increase in temperature after the winter months.

69 citations

Journal ArticleDOI
TL;DR: The existence of an antixenosis and antibiosis‐based resistance to the Q‐biotype of B. tabaci in Mi‐bearing commercial tomato varieties, which is greater than that previously reported for the B‐ biotype, is suggested.
Abstract: Three tomato varieties (Motelle, Ronita, and VFN8) bearing the Mi-1.2 gene providing resistance to nematodes Meloidogyne spp. and to the potato aphid Macrosiphum euphorbiaeThomas, and three varieties not bearing this gene (Moneymaker, Roma, and Rio Fuego), were compared by choice assay for host preference using the Qbiotype of Bemisia tabaci(Gennadius). The most preferred hosts, determined by infestation levels and numbers of feeding adults were Moneymaker, Rio Fuego and Roma, all of which were not carrying the Mi gene. Ronita and Motelle, both of which bore the Mi gene, were the least preferred hosts. In a no-choice assay, B. tabaci females laid a significantly lower number of eggs on the varieties that carried the Mi gene than on those lacking the gene. Differences were more dramatic when plants carrying the Mi gene were pooled together and compared with pooled plants without this gene. Significantly greater values were obtained for the Mi-lacking group for all parameters tested. Comparing these results with those from a previous study on the B-biotype of B. tabaci, Q-biotypes were found to produce higher daily infestation rates on most of the tomato varieties. When results from plants carrying Mi were pooled, they showed lower infestation levels of Q-biotypes than B-biotypes. The Q-biotype infested less Mi-plants and more non-Mi plants than B-biotype. Q-biotype females produced significantly less pupae than the B-biotype females on both groups of plants. These results suggest the existence of an antixenosis and antibiosisbased resistance to the Q-biotype of B. tabaci in Mi-bearing commercial tomato varieties, which is greater than that previously reported for the B-biotype.

68 citations

Journal ArticleDOI
A. J. Popay1, E. R. Thom
01 Jan 2009
TL;DR: A paddock-scale field trial comparing pastures of perennial ryegrass without endophyte (Nil) or infected with the selected endophytes AR1, AR37 or the standard endophyts sown with clover was monitored for insect pests over 3 years, consistent with AR37 pastures having the lowest insect pressure.
Abstract: A paddock-scale field trial comparing pastures of perennial ryegrass without endophyte (Nil) or infected with the selected endophytes AR1, AR37 or the standard endophyte (SE) sown with clover was monitored for insect pests over 3 years (2006-2008). Argentine stem weevil larval damage was reduced by all endophytes in each year.

68 citations


Network Information
Related Topics (5)
Pest control
11K papers, 168.6K citations
87% related
Larva
2.5K papers, 56.4K citations
83% related
Parasitism
2.6K papers, 71.6K citations
83% related
Fecundity
9.4K papers, 226.9K citations
82% related
Permethrin
2.6K papers, 63.8K citations
81% related
Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20241
2023602
20221,428
2021276
2020344
2019294