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You searched for: Publication Year 2005 Remove constraint Publication Year: 2005 Subject mortality Remove constraint Subject: mortality Subject biological control agents Remove constraint Subject: biological control agents Subject bioassays Remove constraint Subject: bioassays
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1. Laboratory evaluation of entomopathogenic fungi against larvae and adults of onion maggot (Diptera: Anthomyiidae)

Author:
Davidson, G.; Chandler, D.
Source:
Journal of economic entomology 2005 v.98 no.6 pp. 1848-1855
ISSN:
0022-0493
Subject:
Beauveria; Delia antiqua; dose response; biological control agents; entomopathogenic fungi; bioassays; Paecilomyces; mortality; lethal dose; larvae; imagos; virulence; Metarhizium
Abstract:
... Laboratory experiments were done to measure the susceptibility of larvae and adults of the onion maggot, Delia antiqua (Meigen) (Diptera: Muscidae: Anthomyiidae) to 27 isolates of entomopathogenic fungi from four genera Beauveria Vuillemin, Lecanicillium (Petch) Zare & W. Gams, Metarhizium Sorokin, and Paecilomyces Bainier. A novel bioassay was developed for D. antiqua larvae by using a diet based ...
DOI:
10.1093/jee/98.6.1848
PubMed:
16539103

2. Development of a Bacillus thuringiensis-based assay on Lygus hesperus

Author:
Wellman-Desbiens, E.; Cote, J.C.
Source:
Journal of economic entomology 2005 v.98 no.5 pp. 1469-1479
ISSN:
0022-0493
Subject:
Lygus hesperus; insect control; Bacillus thuringiensis subsp. neoleoensis; biological control agents; crystal proteins; delta-endotoxins; toxicity; mortality; bioassays; developmental stages; diet; buffers
Abstract:
... Lygus hesperus Knight (Hemiptera: Miridae) is an economically important insect pest controlled primarily by chemical pesticides. Bacillus thuringiensis Berliner is a gram-positive bacterium, which upon sporulation produces a parasporal inclusion body, the crystal. The latter, in some strains, exhibits specific insecticidal activities against lepidopteran, coleopteran, or dipteran pests. The aim of ...
DOI:
10.1093/jee/98.5.1469
PubMed:
16334312

3. An improved method to determine the biological activity (LC50) of the granulovirus PoGV in its host Phthorimaea operculella

Author:
Sporleder, M.; Kroschel, J.; Huber, J.; Lagnaoui, A.
Source:
Entomologia experimentalis et applicata 2005 v.116 no.3 pp. 191-197
ISSN:
0013-8703
Subject:
insect viruses; lethal dose 50; probit analysis; biological control agents; bioassays; pathogenicity; Betabaculovirus; Phthorimaea operculella; mortality
Abstract:
... Granulovirus (PoGV) is a promising candidate to substitute for chemical insecticides in integrated pest management (IPM) of the potato tuber moth, Phthorimaea operculella (Zeller) (Lepidoptera: Gelechiidae). A procedure to assess pathogenicity (LC50) and its standardization is crucial for research into the use of pathogens as biocontrol agents. In the present study, an egg-dip bioassay method was ...
DOI:
10.1111/j.1570-7458.2005.00319.x

4. Development of a novel bioassay for estimation of median lethal concentrations (LC50) and doses (LD50) of the entomopathogenic fungus Beauveria bassiana, against western flower thrips, Frankliniella occidentalis

Author:
Ugine, T.A.; Wraight, S.P.; Brownbridge, M.; Sanderson, J.P.
Source:
Journal of invertebrate pathology 2005 v.89 no.3 pp. 210
ISSN:
0022-2011
Subject:
Frankliniella occidentalis; entomopathogenic fungi; Beauveria bassiana; pathogenicity; conidia; lethal dose 50; bioassays; nymphs; age; mortality; biological control agents
Abstract:
... To conduct laboratory experiments aimed at quantifying secondary acquisition of fungal conidia by western flower thrips (Frankliniella occidentalis), an efficient assay technique using Beauveria bassiana as the model fungus was developed. Various application protocols were tested and it was determined that the percent mortality did not vary among protocols. Peak mortality of second-instar nymphs, ...
Handle:
10113/6097
PubMed:
16039665

5. Patogenicidade de Metarhizium anisopliae var. anisopliae e Metarhizium anisopliae var. acridum sobre Nasutitermes coxipoensis (Holmgren) (Isoptera: Termitidae)

Author:
Albuquerque, A.C.; Pereira, K.C.A.; Cunha, F.M.; Veiga, A.F.S.L.; Athayde, A.C.R.; Lima, E.A.L.A.
Source:
Neotropical entomology 2005 v.34 no.4 pp. 585-591
ISSN:
1519-566X
Subject:
Metarhizium anisopliae; entomopathogenic fungi; biological control agents; genetic variation; conidia; pathogenicity; bioassays; Nasutitermes; insect pests; mortality; biological control
Abstract:
... The action of Metarhizium anisopliae var. anisopliae and Metarhizium anisopliae var. acridum on the mound termite Nasutitermes coxipoensis (Holmgren) and the conidia production on dead insects were studied in laboratory. Infective doses were determined through direct contact of the insects with the fungi cultures with 12 days of growth followed by conidia quantification in Neubauer camera. The dos ...
DOI:
10.1590/S1519-566X2005000400008

6. Laboratory bioassays of entomopathogenic fungi for control of Delia radicum (L.) larvae

Author:
Bruck, D.J.; Snelling, J.E.; Dreves, A.J.; Jaronski, S.T.
Source:
Journal of invertebrate pathology 2005 v.89 no.2 pp. 179
ISSN:
0022-2011
Subject:
Delia radicum; entomopathogenic fungi; biological control agents; Metarhizium anisopliae; Beauveria bassiana; soil treatment; fungal spores; application rate; larvae; mortality; lethal dose; bioassays
Abstract:
... Laboratory soil bioassays were performed at economic field rates for in-furrow (3.85 x 10(6)spores/g dry soil) and broadcast (3.85 x 10(5)spores/g dry soil) applications with three isolates of Metarhizium anisopliae (F52, ATCC62176, and ARSEF5520) and one isolate of Beauveria bassiana (GHA). All isolates tested were infective to second instar Delia radicum (L.). The conditionally registered M. ani ...
Handle:
10113/6096
DOI:
10.1016/j.jip.2005.02.007
PubMed:
16087004

7. A new method to evaluate the biocontrol potential of single spore isolates of fungal entomopathogens

Author:
Posada, F.J.; Vega, F.E.
Source:
Journal of insect science 2005 v.5 pp. 914
Subject:
life cycle (organisms); Beauveria bassiana; entomopathogenic fungi; biological control agents; strains; screening; bioassays; Hypothenemus hampei; mortality; fungal spores; spore germination; sporulation
Abstract:
... Fifty Beauveria bassiana (Balsamo) Vuillemin (Ascomycota: Hypocreales) strains isolated from the coffee berry borer were used to develop a novel screening method aimed at selecting strains with the highest biocontrol potential. The screening method is based on percent insect mortality, average survival time, mortality distribution, percent spore germination, fungal life cycle duration, and spore p ...
Handle:
10113/9627