Evaluation of Chemical Controls and Entomopathogenic Nematodes for Control of Phyllophaga White Grubs in a Fraser Fir Production Field

The results of 2 yr of field trials evaluating various chemical and biological controls of Phyllophaga anxia (LeConte) white grubs in a Fraser fir [Abies fraseri (Pursh) Poir] Christmas tree production field are reported here. Chemical insecticides evaluated included bifenthrin, chlorantraniliprole,...

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Bibliographic Details
Published in:Journal of economic entomology 2010-12, Vol.103 (6), p.1979-1987
Main Authors: Liesch, P. J, Williamson, R. C
Format: Article
Language:English
Subjects:
Abies - parasitology
Abies fraseri
Animals
Biological and medical sciences
BIOLOGICAL AND MICROBIAL CONTROL
Biological control
Chemical control
Coleoptera
Control
entomopathogenic nematodes
Fraser fir
Fundamental and applied biological sciences. Psychology
Generalities
Heterorhabditis bacteriophora
Imidacloprid
Insecticides
Invertebrates
Larva
Nemathelminthia. Plathelmintha
Nematoda
Parks
Pest Control, Biological
Phyllophaga
Phyllophaga anxia
Phytopathology. Animal pests. Plant and forest protection
Plant Roots - parasitology
Protozoa. Invertebrates
Rhabditida
Roots
soil-applied insecticides
Steinernema carpocapsae
Tablets
thiamethoxam
Trees
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Summary:The results of 2 yr of field trials evaluating various chemical and biological controls of Phyllophaga anxia (LeConte) white grubs in a Fraser fir [Abies fraseri (Pursh) Poir] Christmas tree production field are reported here. Chemical insecticides evaluated included bifenthrin, chlorantraniliprole, thiamethoxam, and time-released imidacloprid tablets (Coretect, Bayer CropScience, Research Triangle Park, NC). Entomopathogenic nematodes evaluated included Heterorhabditis bacteriophora (Poinar) and Steinernema carpocapsae (Weiser). Overall, the chemical controls provided the best root protection and grub control. Targeted treatments of an insecticide in the root zone may provide adequate tree protection and can be a way to reduce overall insecticide input compared with banded sprays. The nematode H. bacteriophora provided limited root protection and grub control, whereas S. carpocapsae did not provide effective control. Differences in efficacy and persistence of the two entomopathogenic nematode species can be attributed to the biology and environmental preferences of these organisms.
ISSN:0022-0493
1938-291X
0022-0493
DOI:10.1603/EC10176