Sweep-net Sampling for Western Spotted Cucumber Beetle (Coleoptera: Chrysomelidae) in Snap Beans: Daily Fluctuations in Beetle Counts and Correlation Between Relative and Absolute Density Estimates

1986 ◽  
Vol 79 (4) ◽  
pp. 1100-1105 ◽  
Author(s):  
Richard A. Weinzierl ◽  
Ralph E. Berry ◽  
Glenn C. Fisher
Keyword(s):  
Density Estimates ◽  
Snap Beans ◽  
Absolute Density ◽  
Cucumber Beetle ◽  
Spotted Cucumber Beetle ◽  
Sweep Net

scholarly journals INTERIM RESULTS FROM THE SWEET POTATO RAMP GRANT IN MISSISSIPPI.

HortScience ◽  
2006 ◽  
Vol 41 (3) ◽  
pp. 518A-518
Author(s):  
J.T. Reed ◽  
M.R. Williams ◽  
D. Fleming
Keyword(s):  
Insect Pest ◽  
Flea Beetle ◽  
Insect Damage ◽  
White Grubs ◽  
Leaf Beetles ◽  
Pest Insects ◽  
Cucumber Beetle ◽  
Spotted Cucumber Beetle ◽  
Root Feeding ◽  
Sweep Net

Results from research funded by RAMP (Risk Assessment and Mitigation Program) funds conducted with sweetpotato growers in Mississippi during 2004 and 2005 are discussed. Insects were sampled on a weekly (2004) or biweekly (2005) schedule on land planted to potatoes with and without insecticidal input. Potatoes were harvested from each cooperator's field and evaluated for insect damage one or more times at the end of the season. Insect pest populations in Mississippi sweetpotatoes were relatively low during 2004 and 2005. Under these conditions, the percentage of sweetpotatoes damaged by insects was only slightly reduced by insecticides. Chrysomelid leaf beetles including flea beetles, cucumber beetles and tortoise beetles were the most obvious group of pest insects. The most prominent insect species in sweep net samples during the season was the sweetpotato flea beetle, however damage by this pest was negligible. The most damaging insect based on our evaluation of root damage was the twelve-spotted cucumber beetle. Root feeding by whitefringed beetles, white grubs, and sugarcane beetles was sporadic within the fields in the study, and damage by these insects was generally minimal in 2004 and 2005. Preliminary assessments of the effect of crops planted the year previous to the planting of sweetpotatoes indicate the following order of greater to lesser insect damage: pasture, soybeans, corn, sweetpotato, and cotton. Delay of harvest beyond the optimum harvest date tended to increase insect damage in marketable roots. Pesticide evaluations associated with the study indicate that some reduction in damaged roots may be derived from application of a soil-incorporated insecticide at lay by.

Spotted Cucumber Beetle or Southern Corn Rootworm, Diabrotica undecimpunctata Mannerheim (Coleoptera: Chrysomelidae)

2008 ◽  
pp. 3519-3522
Author(s):  
John B. Heppner ◽  
David B. Richman ◽  
Steven E. Naranjo ◽  
Dale Habeck ◽  
Christopher Asaro ◽  
...  
Keyword(s):  
Corn Rootworm ◽  
Southern Corn Rootworm ◽  
Cucumber Beetle ◽  
Diabrotica Undecimpunctata ◽  
Spotted Cucumber Beetle

scholarly journals Spotted cucumber beetle Diabrotica undecimpunctata howardi Barber (Insecta: Coleoptera: Chrysomelidae)

EDIS ◽  
2013 ◽  
Vol 2013 (9) ◽  
Author(s):  
Harsimran Kaur Gill ◽  
Gaurav Goyal ◽  
Jennifer Gillett-Kaufman
Keyword(s):  
North America ◽  
Corn Rootworm ◽  
Agricultural Pest ◽  
Fact Sheet ◽  
Field Crops ◽  
Diabrotica Undecimpunctata Howardi ◽  
Southern Corn Rootworm ◽  
Cucumber Beetle ◽  
Diabrotica Undecimpunctata ◽  
Spotted Cucumber Beetle

Spotted cucumber beetle is a major agricultural pest of North America. Another name for the spotted cucumber beetle is “southern corn rootworm”. Many Diabrotica species cause damage to field crops, especially corn, making these beetles a major agricultural concern. Because of the subterranean nature of their larvae, these insects are hard and expensive to control. This 6-page fact sheet was written by Harsimran Kaur Gill, Gaurav Goyal, and Jennifer Gillett-Kaufman, and published by the UF Department of Entomology and Nematology, September 2013. http://edis.ifas.ufl.edu/in1008

COMPARISON OF SWEEP-NET AND STEM-COUNT TECHNIQUES FOR SAMPLING PEA APHIDS IN ALFALFA

1989 ◽  
Vol 24 (3) ◽  
pp. 344-347
Author(s):  
G. David Buntin ◽  
David J. Isenhour
Keyword(s):  
Acyrthosiphon Pisum ◽  
Pea Aphid ◽  
Density Estimates ◽  
Pea Aphids ◽  
Efficient Alternative ◽  
Highly Correlated ◽  
Sweep Net

The accuracy, precision and efficiency of stem-count and sweep-net techniques were compared for sampling the pea aphid, Acyrthosiphon pisum (Harris), in alfalfa. Density estimates by both techniques were highly correlated (r = 0.87). Both techniques were similar in sample precision and efficiency, but stem counts provided more accurate density estimates than the sweep net technique. The stem count technique is an accurate and efficient alternative to the sweep net for sampling pea aphids in alfalfa.

FIELD OBSERVATIONS OF PREDATION BY PHIDIPPUS AUDAX (ARANEAE: SALTICIDAE) ON ARTHROPODS ASSOCIATED WITH COTTON

1989 ◽  
Vol 24 (2) ◽  
pp. 266-273 ◽  
Author(s):  
Orrey P. Young
Keyword(s):  
Pest Species ◽  
Potential Prey ◽  
Field Site ◽  
Old Field ◽  
Tarnished Plant Bug ◽  
Crop Pest ◽  
Total Potential ◽  
Cucumber Beetle ◽  
Phidippus Audax ◽  
Spotted Cucumber Beetle

Evidence of 58 predation events by Phidippus audax (Hentz) was obtained during 17–31 October 1986 from a 0.1 ha old field site that included cotton in the Delta of Mississippi. Three crop pest species accounted for 60% of the prey records: tarnished plant bug (TPB) (22%), spotted cucumber beetle (SCB) (22%), and three-cornered alfalfa hopper (TAH) (16%). Censuses (35) of cotton at this site indicated that the most abundant potential prey, SCB, had one of the lowest capture rates by P. audax, 1.9%. Other spiders as a group were captured at a rate of 11.4%, TAH at a rate of 10.2%, and TPB at a rate of 4.3%. Considering the total potential arthropod prey population, P. audax consumed approximately 3.3% during a 2-week period. Predation by P. audax usually occurred between 1030 and 1500 hours, with 7.6% of the P. audax population expected to be consuming prey at any one time. It is estimated that in late-season habitats P. audax may remove ca. 10% of the TPB population every 1–2 weeks.

Sequestered Cucurbitacins and Pathogenicity of Metarhizium anisopliae (Moniliales: Moniliaceae) on Spotted Cucumber Beetle Eggs and Larvae (Coleoptera: Chrysomelidae)

1998 ◽  
Vol 27 (2) ◽  
pp. 366-372 ◽  
Author(s):  
Douglas W. Tallamy ◽  
Daryl P. Whittington ◽  
Ferdinand Defurio ◽  
David A. Fontaine ◽  
Piotr M. Gorski ◽  
...  
Keyword(s):  
Metarhizium Anisopliae ◽  
Cucumber Beetle ◽  
Eggs And Larvae ◽  
Spotted Cucumber Beetle
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