Laboratory studies of Blattisocius keegani (Fox) (Acari: Ascidae) reared on eggs of navel orangeworm: potential for biological control.
Summary of "Laboratory studies of Blattisocius keegani (Fox) (Acari: Ascidae) reared on eggs of navel orangeworm: potential for biological control."
Blattisocius keegani (Fox) is a predatory mite in the family Ascidae (Acari), noted for potential biological control of Coleopteran stored product pests. Performance of B. keegani on eggs of navel orangeworm, Amyelois transitella Walker (Lepidoptera: Pyralidae), was investigated. Mites completed development from egg to adult in 9.2±0.22 days at 25°C and 50-60% relative humidity, and in 6.33±0.29 days at 32.2°C, 30% relative humidity. Mites provisioned with three or five eggs consumed a median of 1.25 to 1.5 eggs, with a maximum of three eggs consumed over 24 h. Regression analyses indicated egg-laying by B. keegani was significantly correlated with the number of A. transitella eggs consumed, and female mites laid an average of 5.82±0.44 eggs over 72 h. Blattisocius keegani, developed on fresh and frozen eggs, laid significantly more eggs when provided with fresh eggs (F3,26=6.16, P=0.0026) and were able to develop on frozen Ephestia kuehniella Zeller (Lepidoptera: Pyralidae) eggs as an alternative host. Mites were equally fecund when fed eggs stored at 0° or -20°C. Provisioning of adult moth bodies in addition to egg prey items increased mite fecundity, although it was demonstrated that B. keegani are phoretic on adult moths as well. The results are the first experimental evidence of B. keegani as a predator of Lepidopteran eggs, as a phoretic species, and of their potential for biological control of navel orangeworm.
Department of Entomology, University of California, One Shields Avenue, Davis, CA 95616, USA.
This article was published in the following journal.
Name: Bulletin of entomological research
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/21067628
- DOI: http://dx.doi.org/10.1017/S0007485310000404
The biology of Phyllocoptes adalius Keifer (Acari: Eriophyoidea) and influence of insemination on female fecundity and longevity were studied. The experiment was conducted at a constant temperature of...
The present study investigated whether incubation media have an impact on infectivity of Capillaria obsignata eggs in chickens infected with gradually increasing doses. C. obsignata eggs collected fro...
Anopheles gambiae sensu stricto, the main vector of malaria in Africa, is characterized by its vast geographical range and complex population structure. Assortative mating amongst the reproductively i...
To evaluate the effects of pesticides to parasite eggs, Ascaris suum eggs were incubated with 5 different pesticides (1:1,500-1:2,000 dilutions of 2% emamectin benzoate, 5% spinetoram, 5% indoxacarb,...
In earlier studies, elevated polychlorinated biphenyl (PCB) and p,p'-dichlorodiphenyldichloroethylene (DDE) concentrations were reported in double-crested cormorant (Phalacrocorax auritus) eggs and tr...
University Reproductive Associates is conducting a pilot study to study the technique of egg freezing. Your participation in this study will provide us with important information to allow...
The purpose of this study is to determine the effectiveness of the ViaCyte media for freezing and thawing human eggs for future use in assisted reproductive technology.
This study is to determine the impact of the consumption of eggs rich in lutein/zeaxanthin from lucerne protein concentrate and DHA from microalgae on the plasma levels of these compounds...
In programmes of IVF, normal women undergo controlled ovarian stimulation using exogenous FSH injections to obtain multiple eggs. The process results in eggs of mixed quality with a broad...
Age-related macula degeneration (AMD, encompassing both dry and wet form), the late stage of Age-related maculopathy (ARM), is the leading cause of blindness in many developed countries in...
Medical and Biotech [MESH] Definitions
The application of discoveries generated by laboratory research and preclinical studies to the development of clinical trials and studies in humans. A second area of translational research concerns enhancing the adoption of best practices
Studies designed to examine associations, commonly, hypothesized causal relations. They are usually concerned with identifying or measuring the effects of risk factors or exposures. The common types of analytic study are CASE-CONTROL STUDIES; COHORT STUDIES; and CROSS-SECTIONAL STUDIES.
A genus of saprophytic fungi in the family Nidulariaceae. They look like small bird's nests complete with eggs. The eggs are small capsules known as peridioles, which contain the spores.
The process of laying or shedding fully developed eggs (OVA) from the female body. The term is usually used for certain INSECTS or FISHES with an organ called ovipositor where eggs are stored or deposited before expulsion from the body.
A genus of marine sea slugs in the family Glaucidae, superorder GASTROPODA, found on the Pacific coast of North America. They are used in behavioral and neurological laboratory studies.