Use of insect pathogen Bacillus thuringiensis for control of grubs (Coleoptera: Scarabaeidae) in turf

Abstract

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Management of Early-Instar Japanese Beetle (Coleoptera: Scarabaeidae) in Field-Grown Nursery Crops

“…B. thuringiensis subspecies japonensis Buibui strain was evaluated in 1996 only and provided inconsistent control of Japanese beetle larvae (0 Ð75%). This is in contrast to the results found in a turf environment (Alm et al 1997, Michaels 2000, which showed generally higher levels of control.…”

LC and LD<SUB>50</SUB> Values of <I>Bacillus thuringiensis</I> Serovar <I>japonensis</I> Strain Buibui Toxin to Oriental Beetle and Northern Masked Chafer Larvae (Coleoptera: Scarabaeidae)

“…Suzuki et al (1992Suzuki et al ( , 1993 found the LC 50 value for Þrst-instar A. cuprea to be Ϸ0.1 g/g compost. Michaels (2000) found the LC 50 value for southern masked chafers, C. lurida, to be 5 g toxin/g root mix for third instars, Suzuki et al 1992 found the LC 50 value for A. rufocuprea to be 25 g toxin/g compost, and Koppenhofer and Kaya 1997 found the LC 50 values for the masked chafers C. hirta LeConte and C. pasadenae Casey to be 35 and 25 g toxin/g soil, respectively. Suzuki et al (1992) showed that 25 g of toxin was not effective against second-instar Allomyrina dichotoma L. (subfamily Dynastinae).…”

Enhanced Toxicity of Bacillus thuringiensis japonensis Strain Buibui Toxin to Oriental Beetle and Northern Masked Chafer (Coleoptera: Scarabaeidae) Larvae With Bacillus sp. NFD2

“…Suzuki et al (1992) showed that 25 g of toxin was not effective against second-instar Allomyrina dichotoma L. (subfamily Dynastinae). From the data presented in here and in Michaels (2000), Suzuki et al (1992Suzuki et al ( , 1993, and Bixby et al (2007), it seems that members of the subfamilies Rutelinae and Cetoniinae may be the most susceptible, followed by Dynastinae and Melolonthinae. It is important to note that the bioassay method (per os, compost, soil [autoclaved, nonautorclaved], root mix) has a profound effect on the LC 50 .…”

“…Suzuki et al (1992Suzuki et al ( , 1993 found the LC 50 for Þrst-instar A. cuprea to be Ϸ0.1 g per g compost. Michaels (2000) found the LC 50 for Cyclocephala lurida Bland, to be 5 g toxin per g root mix for third instars, Suzuki et al (1992) found the LC 50 for the A. rufocuprea, to be 25 g toxin per g compost, and Koppenhofer and Kaya (1997) found the LC 50 values for Cyclocephala hirta LeConte and Cyclocephala pasadenae (Casey) to be 35 and 25 g toxin per g soil, respectively. Suzuki et al (1992) showed that 25 g of toxin was not effective against second-instar Allomyrina dichotoma L. (subfamily Dynastinae).…”