Increased Field and Greenhouse Efficacy against Scarab Grubs with a Combination of an Entomopathogenic Nematode andBacillus thuringiensis

Koppenhöfer, Albrecht M.; Choo, Ho Yul; Kaya, Harry K.; Lee, D.W; Gelernter, Wendy

doi:10.1006/bcon.1998.0663

Cited by 70 publications

(36 citation statements)

References 9 publications

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“…Without aeration, S. carpocapsae was unaffected but H. bacteriophora showed poor survival in the two formulations (Javelin after 1 day and Biobit after 3 days). Studies by Koppenhö fer & and Koppenhö fer et al (1999Koppenhö fer et al ( , 2000 indicated additive or synergistic interaction between B. thuringiensis subspecies japonensis strain (Btj) and entomopathogenic nematodes S. glaseri and H. bacteriophora against scarab grubs in the laboratory, greenhouses, and field tests. The authors speculated that the Btj could stress the insect, enhancing their susceptibility to entomopathogenic nematodes.…”

Section: Discussionmentioning

confidence: 99%

Compatibility ofSteinernema feltiae(Nematoda: Steinernematidae) with Pesticides and Plant Growth Regulators Used in Glasshouse Plant Production

Nardo¹,

Grewal²

2003

Biocontrol Science and Technology

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Compatibility of the entomopathogenic nematode, Steinernema feltiae Filipjev with 17 different pesticides and three plant growth regulators, recommended for drench application in glasshouses, was evaluated. The products tested were two biofungicides, Streptomyces griseoviridis (Mycostop) and Trichoderma harzianum (Rootshield), nine chemical fungicides, iprodione (Chipco 26GT), thiophanate-methyl (Fungo Flo 4.5F), azoxystrobin (Heritage), fludioxonil (Medallion), flutolanil (Prostar), mefenoxam (SudDue Maxx 21.3ME), PCNB (Terraclor 400F), triflumizole (Terraguard), and etridiazole (Terrazole), two bioinsecticides, spinosad (Conserve SC) and Bacillus thuringiensis subsp. israelensis (Gnatrol), three chemical insecticides diflubenzuron (Adept IGR), acephate (Orthene), and fenoxycarb (Precision 25WP), one herbicide, clethodim (Envoy) and three plant growth regulators, ancymidol (ARest), paclobutrazol (Bonzi), and uniconazole-P (Sumagic). Infective juvenile nematodes were exposed to each product at the highest recommended concentration in 24-well plates at 228C. Observations on the viability and infectivity of the nematodes were made at 4, 24, and 72 h after exposure. We found that S. feltiae is compatible with the majority of the tested formulations with no loss in viability and infectivity up to 24 h of exposure. The viability of S. feltiae was more than 80% in all the products even after 72 h of exposure. Three pesticide formulations, Prostar (1%), Gnatrol (9%), and Terrazole (10%) decreased the viability of S. feltiae significantly within 24 h compared to the controls. However, during the 24 to 72 hr incubation period, eight pesticides affected the viability of S. feltiae with Gnatrol and Terrazole causing the highest decrease (17% and 15%, respectively). Only Terrazole decreased the infectivity of S. feltiae to Galleria mellonella larvae compared to the control when tested after 24 h exposure. At 72 hr, Orthene and Terrazole caused significant decrease in the infectivity of S. feltiae (10% and 15%, respectively) and Gnatrol caused a significant increase in the infectivity (11%) compared to the Correspondence to: P. S. Grewal. Permanent address of E.A.B. De Nardo: Brazilian Agricultural Corporation Á/ EMBRAPA MEIO AMBIENTE, Rod. SP.-340, Downloaded by [Colorado College] at 17:47 31 March 2015control. Our results suggest that S. feltiae can be tank-mixed and applied in combination with all the tested formulations, except Terrazole.

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Section: Discussionmentioning

confidence: 99%

Compatibility ofSteinernema feltiae(Nematoda: Steinernematidae) with Pesticides and Plant Growth Regulators Used in Glasshouse Plant Production

Nardo¹,

Grewal²

2003

Biocontrol Science and Technology

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“…S. carpocapsae and Bacillus thuringiensis (Berliner) (Bacillales: Bacillaceae) (Bt) can develop simultaneously in co-infected hosts, but the development of the EPNs is abnormal and the resulting IJs are smaller and have less food reserves than do IJs produced from insects that are not infected with Bt (Kaya & Burlando, 1989). Nonetheless, combinations of EPNs and Bt can additively or synergistically increase levels of mortality of scarab grubs for certain combinations of EPN and grub species (Koppenhöfer, Choo, Kaya, Lee, & Gelernter, 1999;; and the combined use of EPNs and Metarhizium anisopliae (Metchnikoff) Sorokin (Hypocreales: Clavicipitaceae) has been suggested for black vine weevil control (Ansari, Shah, & Butt, 2008).…”

Section: Competition With Non-entomopathogenic Nematodesmentioning

confidence: 99%

Entomopathogenic Nematodes in the Soil Environment: Distributions, Interactions and the Influence of Biotic and Abiotic Factors

Stuart¹,

Barbercheck

Grewal³

2015

Nematode Pathogenesis of Insects and Other Pests

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“…KOPPENHÖFER et al (1999) highlighted the possibility of using control agent groups with synergic effects, such as EN and Bacillus thuringiensis, which causes stress to the inoculated larvae due to the presence of pathogens, and thus, the larvae become more susceptible to the action of later applied nematodes, assisting with a more rapid mortality of the pest. This outcome is due to the high mortality caused by the involved agents (BAUR et al, 1998).…”

Section: Greenhouse Testmentioning

confidence: 99%

Evaluation of entomopathogenic nematodes under laboratory and greenhouses conditions for the control of Spodoptera frugiperda

et al. 2010

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Increased Field and Greenhouse Efficacy against Scarab Grubs with a Combination of an Entomopathogenic Nematode andBacillus thuringiensis

Cited by 70 publications

References 9 publications

Compatibility ofSteinernema feltiae(Nematoda: Steinernematidae) with Pesticides and Plant Growth Regulators Used in Glasshouse Plant Production

Compatibility ofSteinernema feltiae(Nematoda: Steinernematidae) with Pesticides and Plant Growth Regulators Used in Glasshouse Plant Production

Entomopathogenic Nematodes in the Soil Environment: Distributions, Interactions and the Influence of Biotic and Abiotic Factors

Evaluation of entomopathogenic nematodes under laboratory and greenhouses conditions for the control of Spodoptera frugiperda

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