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You searched for: Journal name Biocontrol science and technology Remove constraint Journal name: Biocontrol science and technology Publication year rev 7998-2002 Remove constraint Publication year rev: 7998-2002 Source 2002 v.12 no.1 Remove constraint Source: 2002 v.12 no.1
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1. Assessing the potential of entomopathogenic nematodes to control the grape root borer Vitacea polistiformis (Lepidoptera: Sesiidae) through laboratory and greenhouse bioassays

Author:
Williams, R.N.; Fickle, D.S.; Grewal, P.S.; Meyer, J.R.
Source:
Biocontrol science and technology 2002 v.12 no.1 pp. 35-42
ISSN:
0958-3157
Subject:
interspecific variation; Steinernema; Heterorhabditis; entomopathogenic nematodes; larvae; biological control agents; Vitis vinifera; strain differences; bioassays; Vitacea polistiformis; cambium; roots; mortality; biological control
Abstract:
... Seventeen entomopathogenic nematode species and strains were evaluated for virulence to the grape root borer, Vitacea polistiformis (Harris) in laboratory and greenhouse bioassays. Heterohabditis bacteriophora strain GPS11 and H. zealandica strain X1 produced a larval mortality rate of over 85% of larvae embedded in the root cambium in laboratory bioassays. The nematode species H. marelata and H. ...
DOI:
10.1080/09583150120110644

2. Effects of culture age, washing and storage conditions on desiccation tolerance of Colletotrichum truncatum conidia

Author:
Montazeri, M.; Greaves, M.P.
Source:
Biocontrol science and technology 2002 v.12 no.1 pp. 95-105
ISSN:
0958-3157
Subject:
Colletotrichum truncatum; cultured cells; age; storage; conidia; culture media; carbon nitrogen ratio; sucrose; spore germination; glucose; fructose; starch; sodium chloride; application rate; mycoherbicides
Abstract:
... Colletotrichum truncatum conidia produced from a one week-old culture in a liquid semi-defined medium with a C:N ratio of 5:1 were more tolerant of desiccation than those harvested from two or three week-old cultures. Conidia washed with 20% (w/v) sucrose germinated better than unwashed conidia or those washed in 10% (w/v) sucrose, 10 and 20% (w/v) glucose or fructose, 0.1% (w/v) soluble starch, 0 ...
DOI:
10.1080/09583150120110680

3. Mortality in three African tephritid fruit fly puparia and adults caused by the entomopathogenic fungi, Metarhizium anisopliae and Beauveria bassiana

Author:
Ekesi, S.; Maniania, N.K.; Lux, S.A.
Source:
Biocontrol science and technology 2002 v.12 no.1 pp. 7-17
ISSN:
0958-3157
Subject:
eclosion; Ceratitis cosyra; pupae; dose response; Metarhizium anisopliae; biological control agents; Beauveria bassiana; strain differences; pathogenicity; larvae; Ceratitis capitata; mortality; adults; biological control
Abstract:
... The pathogenicity of 13 isolates of Metarhizium anisopliae and two isolates of Beauveria bassiana to Ceratitis capitata and Ceratitis var. rosa fasciventris exposed as late third instar larvae in sand was evaluated in the laboratory. All isolates caused a significant reduction in adult emergence and a corresponding large mortality on puparia of both species. All isolates also induced large deferre ...
DOI:
10.1080/09583150120093077

4. Outdoor studies of the efficacy of Alternaria alternata in controlling Amaranthus retroflexus

Author:
Lawrie, J.; Greaves, M.P.; Down, V.M.; Morales-Aza, B.; Lewis, J.M.
Source:
Biocontrol science and technology 2002 v.12 no.1 pp. 83-94
ISSN:
0958-3157
Subject:
Amaranthus retroflexus; weed control; Alternaria alternata; biological control; conidia; weight; mortality; Triticum aestivum; leaves; viability; spore germination; crop-weed competition; microclimate; application rate; mycoherbicides; biomass production
Abstract:
... Application of 250 L ha-1 containing 10(7) Alternaria alternata conidia ml-1 caused 61% reduction in dry weight and a 45% mortality in Amaranthus retroflexus plants growing in a wheat crop. However, only 10-20% of the applied conidia were retained on the leaf. In one experiment, conidia remained viable for 4 days on the leaf surface until conditions were favourable for germination. Competition fro ...
DOI:
10.1080/09583150120110671

5. Studies of spray application of microbial herbicides in relation to conidial propagule content of spray droplets and retention on target

Author:
Lawrie, J.; Greaves, M.P.; Down, V.M.; Western, N.M.
Source:
Biocontrol science and technology 2002 v.12 no.1 pp. 107-119
ISSN:
0958-3157
Subject:
Amaranthus retroflexus; spraying; conidia; droplets; hypocotyls; developmental stages; nozzles; inoculum density; mycelium; crops; canopy; mycoherbicides
Abstract:
... This paper addresses the hypothesis that the spray application system used will affect the retention of spray deposits of microbial herbicides on different plant structures. There was greater spray retention on the hypocotyl of 4 to 6-true leaf Amaranthus retroflexus plants (20-31%) sprayed with an aerosol-producing laboratory sprayer than with a hydraulic nozzle (3-5%). Spray deposition and reten ...
DOI:
10.1080/09583150120110699

6. A strategy for the biological control on Onopordum spp. thistles in South-eastern Australia

Author:
Briese, D.T.; Pettit, W.J.; Swirepik, A.; Walker, A.
Source:
Biocontrol science and technology 2002 v.12 no.1 pp. 121-136
ISSN:
0958-3157
Subject:
life cycle (organisms); Onopordum; weed control; biological control; developmental stages; insect pests; biological control agents; plant density; predation; host plants; plant pests; Australia
Abstract:
... A strategy is described for the biological control of exotic Onopordum spp. thistles in Australia. This strategy is based on identification of critical transitional stages in the life-cycle of the weed and targeting a complementary group of insect herbivores against these stages. The strategy has both long- and short-term aims and is focussed on the long-lived soil seed bank of these thistles. In ...
DOI:
10.1080/09583150120110707

7. Biological control of kudzu (Pueraria lobata) with an isolate of Myrothecium verrucaria

Author:
Boyette, C.D.; Walker, H.L.; Abbas, H.K.
Source:
Biocontrol science and technology 2002 v.12 no.1 pp. 75-82
ISSN:
0958-3157
Subject:
Pueraria montana var. lobata; Myrothecium verrucaria; biological control; biological control agents; weed control; virulence; dew; conidia; surfactants; developmental stages; air temperature; mortality; necrosis; leaves; stems; mycoherbicides; Mississippi
Abstract:
... An isolate of the fungus Myrothecium verrucaria (MV) was evaluated for biocontrol potential against kudzu (Pueraria lobata). In greenhouse tests, MV was highly virulent against kudzu in the absence of dew when conidia were formulated in 0.2% Silwet L-77 surfactant (SW). Inoculum concentrations > or = 2 x 10(7) conidia ml-1 were required to satisfactorily control plants in the third leaf stage and ...
DOI:
10.1080/09583150120093031

8. FI-1045: a profile of a commercially useful isolate of Metarhizium anisopliae var. anisopliae

Author:
Milner, R.J.; Samson, P.R.; Bullard, G.K.
Source:
Biocontrol science and technology 2002 v.12 no.1 pp. 43-58
ISSN:
0958-3157
Subject:
Metarhizium anisopliae; Scarabaeidae; strains; biological control agents; Saccharum; biological control; larvae; nucleotide sequences; temperature; pigments; storage; freeze drying; bioassays; lethal dose; Tenebrio molitor; conidia; virulence; host range; random amplified polymorphic DNA technique; culture filtrates; Australia
Abstract:
... The isolate FI-1045 is the basis of a mycoinsecticide, BioCane granules recently registered for the control of greyback canegrub, Dermolepida albohirtum (Coleoptera: Scarabaeidae: Melolonthinae) in Australian sugarcane fields. The isolate was obtained from a naturally infected larva of D. albohirtum collected from Tully in north Queensland. The isolate can be distinguished from others infecting th ...
DOI:
10.1080/09583150120110653

9. Formulation of bacteria for biological weed control using the Stabileze method

Author:
Zidack, N.K.; Quimby, P.C. Jr.
Source:
Biocontrol science and technology 2002 v.12 no.1 pp. 67-74
ISSN:
0958-3157
Subject:
Pseudomonas syringae pv. tabaci; Pseudomonas syringae pv. tagetis; weed control; biological control; methodology; oils; sucrose; starch; storage; viability; duration; mortality
Abstract:
... Two plant pathogenic Pseudomonas spp. were formulated using the 'Stabileze' method which involves the incorporation of bacteria in a water-absorbent starch matrix with oil and sucrose, then granulating the matrix with hydrated silica. In one experiment, P. syringae pv. tabaci formulated with the standard Stabileze formula was evaluated for storage viability at -15, 2 and 22 degrees C. Bacteria sto ...
DOI:
10.1080/09583150120093112

10. Influence of stream profile and abiotic factors on the performance and residual dosages of two commercial formulations of Bacillus thuringiensis subsp. israelensis during a 2-year experiment

Author:
Boisvert, M.; Boisvert, J.; Aubin, A.
Source:
Biocontrol science and technology 2002 v.12 no.1 pp. 19-33
ISSN:
0958-3157
Subject:
Bacillus thuringiensis subsp. israelensis; strains; residual effects; water temperature; Simulium decorum; Simulium venustum; Simulium verecundum; larvae; biological control; mortality; biological control agents; application rate; Quebec
Abstract:
... Recently, results of a 3-year study showed the importance of abiotic factors such as water temperature, stream discharge and the hyporheic zone on the behaviour, performance and loss of the residual dosages (amount of the injected dosage left at each station) of two commercial liquid formulations of Bacillus thuringiensis subsp. israelensis (Bti), Teknar HP-D and Vectobac 1200L. Experiments were p ...
DOI:
10.1080/09583150120110635

11. Lateral movement of the entomopathogenic nematodes Steinernema glaseri and Heterorhabditis bacteriophora in sand at different temperatures in response to host seeking

Author:
Csontos, A.S.
Source:
Biocontrol science and technology 2002 v.12 no.1 pp. 137-139
ISSN:
0958-3157
Subject:
Heterorhabditis bacteriophora; Steinernema glaseri; Galleria mellonella; temperature; hosts; foraging; larvae; host seeking
Abstract:
... Laboratory studies were conducted to determine the lateral movement of Steinernema glaseri and Heterorhabditis bacteriophora in sand at 15, 20, 25 and 30 degrees C in response to Galleria mellonella larvae. Lateral movement was assessed in 42.5 x 5 cm PVC tubes, constructed from 17 individual sections, with G. mellonella larvae placed on one end and the nematodes in the center. The proportion of t ...
DOI:
10.1080/09583150120110716

12. A low-cost contamination device for infecting adult tsetse flies, Glossina spp., with the entomopathogenic fungus Metarhizium anisopliae in the field

Author:
Maniania, N.K.
Source:
Biocontrol science and technology 2002 v.12 no.1 pp. 59-66
ISSN:
0958-3157
Subject:
viability; animal behavior; conidia; Metarhizium anisopliae; methodology; duration; traps; Glossina fuscipes fuscipes; infection; biological control
Abstract:
... A low-cost device for infecting adult tsetse fly, Glossina fuscipes fuscipes, with the entomopathogenic fungus Metarhizium anisopliae was designed and tested in the field. Tsetse flies that are attracted to the trap entered the contamination device and ultimately became infected with the fungus. Traps exposed to the sun attracted more flies than did the ones placed in the shade. The time spent by ...
DOI:
10.1080/09583150120110662