William E. Walton, Margaret C. Wirth, Parker D. Workman
Survival of the threespine stickleback, Gasterosteus aculeatus, differed among marshes in a demonstration 9.9-ha multipurpose constructed treatment wetland designed to improve the quality of...
Synergy between Toxins of Bacillus thuringiensis subsp. israelensis and Bacillus sphaericus (2004)
Margaret C. Wirth, Joshua A. Jiannino, Brian A. Federici, William E. Walton
Synergistic interactions among the multiple endotoxins of Bacillus thuringiensis subsp. israelensis de Barjac play an important role in its high toxicity to mosquito larvae and the absence of...
Margaret C. Wirth, Armelle Delécluse, William E. Walton
The bacteria Bacillus thuringiensis subsp. israelensis and Bacillus sphaericus produce insecticidal toxins used to control mosquito larvae throughout the world. Unfortunately, there are few...
Margaret C. Wirth, James A. Ferrari, George P. Georghiou
Bacterial insecticides play an increasingly important role in mosquito control. To establish guidelines for detecting resistance at an early stage, information on natural variation in susceptibility...
Margaret C. Wirth, George P. Georghiou, Javed Iqbal Malik, Ghulam Hussain
A previously untreated field population ofCulex quinquefasciatusSay, collected near Bakersfield, CA, was subjected to intensive laboratory selection with the bacterial insecticideBacillus...
Margaret C. Wirth, William E. Walton, Brian A. Federici
The 2362 strain of Bacillus sphaericus, which produces a binary toxin highly active against Culex mosquitoes, has been developed recently as a commercial larvicide. It is being used currently in...
Wirth, Margaret C., Federici, Brian A., Walton, William E.
Bacillus sphaericus is a mosquitocidal bacterium recently developed as a commercial larvicide that is used worldwide to control pestiferous and vector mosquitoes. Whereas B. sphaericus is highly...
Meyer, Susan K., Tabashnik, Bruce E., Liu, Yong-Biao, Wirth, Margaret C., Federici, Brian A.
We tested Cyt1Aa, a cytolytic endotoxin of Bacillus thuringiensis, against susceptible and Cry1A-resistant larvae of two lepidopteran pests, diamondback moth (Plutella xylostella) and pink bollworm...
Wirth, Margaret C., Delécluse, Armelle, Walton, William E.
Culex quinquefasciatus mosquitoes with high levels of resistance to single or multiple toxins from Bacillus thuringiensis subsp. israelensis were tested for cross-resistance to the Bacillus...
Wirth, Margaret C., Delécluse, Armelle, Walton, William E.
The interaction of two cytolytic toxins, Cyt1Ab from Bacillus thuringiensis subsp. medellin and Cyt2Ba from Bacillus thuringiensis subsp. israelensis, with Bacillus sphaericus was evaluated against...
Wirth, Margaret C., Delécluse, Armelle, Federici, Brian A., Walton, William E.
A novel mosquitocidal bacterium, Bacillus thuringiensis subsp. jegathesan, and one of its toxins, Cry11B, in a recombinant B. thuringiensis strain were evaluated for cross-resistance with strains of...
Wirth, Margaret C., Park, Hyun-Woo, Walton, William E., Federici, Brian A.
Insecticides based on Bacillus thuringiensis subsp. israelensis have been used for mosquito and blackfly control for more than 20 years, yet no resistance to this bacterium has been reported....
Wirth, Margaret C., Federici, Brian A., Walton, William E.
Bacillus sphaericus is a mosquitocidal bacterium recently developed as a commercial larvicide that is used worldwide to control pestiferous and vector mosquitoes. Whereas B. sphaericus is highly...
Meyer, Susan K., Tabashnik, Bruce E., Liu, Yong-Biao, Wirth, Margaret C., Federici, Brian A.
We tested Cyt1Aa, a cytolytic endotoxin of Bacillus thuringiensis, against susceptible and Cry1A-resistant larvae of two lepidopteran pests, diamondback moth (Plutella xylostella) and pink bollworm...
Wirth, Margaret C., Delécluse, Armelle, Walton, William E.
Culex quinquefasciatus mosquitoes with high levels of resistance to single or multiple toxins from Bacillus thuringiensis subsp. israelensis were tested for cross-resistance to the Bacillus...
Wirth, Margaret C., Delécluse, Armelle, Walton, William E.
The interaction of two cytolytic toxins, Cyt1Ab from Bacillus thuringiensis subsp. medellin and Cyt2Ba from Bacillus thuringiensis subsp. israelensis, with Bacillus sphaericus was evaluated against...
Wirth, Margaret C., Delécluse, Armelle, Federici, Brian A., Walton, William E.
A novel mosquitocidal bacterium, Bacillus thuringiensis subsp. jegathesan, and one of its toxins, Cry11B, in a recombinant B. thuringiensis strain were evaluated for cross-resistance with strains of...
Wirth, Margaret C., Park, Hyun-Woo, Walton, William E., Federici, Brian A.
Insecticides based on Bacillus thuringiensis subsp. israelensis have been used for mosquito and blackfly control for more than 20 years, yet no resistance to this bacterium has been reported....
Wirth, Margaret C., Yang, Yangkun, Walton, William E., Federici, Brian A., Berry, Colin
Two mosquitocidal toxins (Mtx) of Bacillus sphaericus, which are produced during vegetative growth, were investigated for their potential to increase toxicity and reduce the expression of insecticide...