Feeding strategy and prey selectivity in Cnesterodon decemmaculatus and Jenynsia multidentata in experimental enclosures: Importance for the biological control of mosquito populations

AbstractMetzneria paucipunctella Zeller is a seed head moth introduced for biological control of spotted knapweed, Centaurea maculosa Lamarck, in the Pacific Northwest. A cage study was conducted in Montana in 1987 and 1988 to assess the feeding strategy of the M. paucipunctella larva and its impact on two seed head flies, Urophora spp., also introduced on spotted knapweed. Each moth larva destroyed an average of 8.13 knapweed seeds. Most of the seeds were destroyed prior to seed dispersal in early September but the remaining seeds were attacked in the spring of the following year. Each larva tied an average of 7.0 seeds with silk webbing which allowed for feeding long after normal seed dispersal. Seed survival in cages containing both the moth and the two fly species (4.71 seeds per head) was significantly less than in fly-only cages (9.75 seeds per head). The moth larvae caused extensive mortality to the two Urophora species, especially during the spring months. Moth-caused mortality to U. affinis larvae increased from 19% during June through October to 67% in May of the following year. Mortality to U. quadrifasciata also occurred but did not increase significantly in the spring. Data from 10 field sites showed very little association between M. paucipunctella and the two Urophora species which suggests that the unnatural conditions associated with the cages did not increase the incidence of joint moth and fly attack to individual seed heads. The moth is a valuable biocontrol agent as it is contributing significantly to the overall consumer pressure on spotted knapweed seed heads.

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Feeding strategy and prey selectivity of Chelidonichthys spinosus during autumn in Haizhou Bay

Journal of Fishery Sciences of China ◽

10.3724/sp.j.1118.2018.17350 ◽

2018 ◽

Vol 25 (5) ◽

pp. 1059

Author(s):

Rongfu WANG ◽

Chongliang ZHANG ◽

Binduo XU ◽

Yiping REN ◽

Ying XUE

Keyword(s):

Feeding Strategy ◽

Prey Selectivity ◽

Haizhou Bay

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Interactions between host plants, the subterranean burrower bug, Cyrtomenus bergi, and the entomopathogenic nematode Heterorhabditis megidis

Nematology ◽

10.1163/1568541042843441 ◽

2004 ◽

Vol 6 (5) ◽

pp. 633-639 ◽

Cited By ~ 1

Author(s):

Lemma Ebssa ◽

Christian Borgemeister ◽

Hans-Michael Poehling ◽

Ralf-Udo Ehlers ◽

Elisabeth Struck ◽

...

Keyword(s):

Biological Control ◽

Host Plants ◽

Zea Mays L ◽

Biological Control Agent ◽

Feeding Strategy ◽

Entomopathogenic Nematode ◽

Control Agent ◽

Host Finding ◽

Maize Seedling ◽

Heterorhabditis Megidis

AbstractInteractions between seedlings of Zea mays L. as a host plant, the subterranean burrower bug, Cyrtomenus bergi Froeschner, as a pest, and Heterorhabditis megidis Poinar, an entomopathogenic nematode, as a biological control agent, were studied, with a particular emphasis on the host finding behaviour of the nematode. For the trials a sand-filled Y-tube olfactometer was used. In the Y-arms, a bug, a maize seedling, a combination of both, or sand only was offered. Six experiments were carried out with differently treated Y-arms. Nematodes were significantly attracted to maize as well as to the combination of maize and bug, but not to C. bergi alone or to sand only. The influence of the feeding strategy of C. bergi on the host finding behaviour of H. megidis is discussed.

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Parasitism-mediated prey selectivity in laboratory conditions and implications for biological control

Basic and Applied Ecology ◽

10.1016/j.baae.2016.11.002 ◽

2017 ◽

Vol 19 ◽

pp. 67-75 ◽

Cited By ~ 6

Author(s):

Rafael de Andrade Moral ◽

Clarice Garcia Borges Demétrio ◽

John Hinde ◽

Wesley Augusto Conde Godoy ◽

Francisco Sales Fernandes

Keyword(s):

Biological Control ◽

Prey Selectivity ◽

Laboratory Conditions

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Electron investigations of rhabdovirus-like particles in mexican bean beetles and crickets

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100082753 ◽

1978 ◽

Vol 36 (2) ◽

pp. 378-379

Author(s):

J. R. Adams ◽

G. J Tompkins ◽

A. M. Heimpel ◽

E. Dougherty

Keyword(s):

Biological Control ◽

Integrated Pest Management ◽

Pest Management ◽

Developmental Stages ◽

Management Program ◽

Acheta Domesticus ◽

Epilachna Varivestis ◽

House Cricket ◽

Similar Morphology ◽

Bean Beetle

As part of a continual search for potential pathogens of insects for use in biological control or on an integrated pest management program, two bacilliform virus-like particles (VLP) of similar morphology have been found in the Mexican bean beetle Epilachna varivestis Mulsant and the house cricket, Acheta domesticus (L. ).Tissues of diseased larvae and adults of E. varivestis and all developmental stages of A. domesticus were fixed according to procedures previously described. While the bean beetles displayed no external symptoms, the diseased crickets displayed a twitching and shaking of the metathoracic legs and a lowered rate of activity.Examinations of larvae and adult Mexican bean beetles collected in the field in 1976 and 1977 in Maryland and field collected specimens brought into the lab in the fall and reared through several generations revealed that specimens from each collection contained vesicles in the cytoplasm of the midgut filled with hundreds of these VLP's which were enveloped and measured approximately 16-25 nm x 55-110 nm, the shorter VLP's generally having the greater width (Fig. 1).

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Cost-Benefit Reasoning About Biological Control

PsycEXTRA Dataset ◽

10.1037/e652942007-001 ◽

2007 ◽

Author(s):

Andrew E. Monroe ◽

Corinne Zimmerman

Keyword(s):

Biological Control ◽

Cost Benefit

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Yellow Brazilian Pepper-tree Leaf Galler (suggested common name) Calophya latiforceps Burckhardt (Insecta: Hemiptera: Calophyidae: Calophyinae)

EDIS ◽

10.32473/edis-in1186-2017 ◽

2017 ◽

Vol 2017 (6) ◽

Author(s):

James P. Cuda ◽

Patricia Prade ◽

Carey R. Minteer-Killian

Keyword(s):

Biological Control ◽

North America ◽

Natural Enemies ◽

Host Plants ◽

Classical Biological Control ◽

Biological Control Agents ◽

Pepper Tree ◽

Brazilian Pepper ◽

Close Relatives ◽

Tree Leaf

In the late 1970s, Brazilian peppertree, Schinus terebinthifolia Raddi (Sapindales: Anacardiaceae), was targeted for classical biological control in Florida because its invasive properties (see Host Plants) are consistent with escape from natural enemies (Williams 1954), and there are no native Schinus spp. in North America. The lack of native close relatives should minimize the risk of damage to non-target plants from introduced biological control agents (Pemberton 2000). [...]

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