Terpenes of Wild Sunflowers (Helianthus): An Effective Mechanism Against Seed Predation by Larvae of the Sunflower Moth, Homoeosoma electellum (Lepidoptera: Pyralidae)

1987 ◽  
Vol 16 (3) ◽  
pp. 586-592 ◽  
Author(s):  
C. E. Rogers ◽  
J. Gershenzon ◽  
N. Ohno ◽  
T. J. Mabry ◽  
R. D. Stipanovic ◽  
...  
Keyword(s):  
Seed Predation ◽  
Effective Mechanism ◽  
Lepidoptera Pyralidae ◽  
Sunflower Moth ◽  
Homoeosoma Electellum

scholarly journals Sunflower Moth (Lepidoptera: Pyralidae) Biology, Ecology, and Management

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Tom A Royer ◽  
Janet J Knodel
Keyword(s):  
Pest Management ◽  
Chemical Control ◽  
Insect Pest ◽  
Management Strategies ◽  
Cultural Control ◽  
Pheromone Trapping ◽  
Economic Thresholds ◽  
Lepidoptera Pyralidae ◽  
Sunflower Moth ◽  
Homoeosoma Electellum

Abstract Sunflower moth, Homoeosoma electellum (Hulst) is an important insect pest of cultivated sunflower in North America. In this review, we outline sunflower moth life history and biology and describe direct and indirect crop injury to cultivated sunflower. Pest management strategies for sunflower moth are discussed including proper field scouting, pheromone trapping, use of economic thresholds and biological control, cultural control, host plant resistance and chemical control for incorporation into an integrated pest management (IPM) program.

scholarly journals Effects from Early Planting of Late-Maturing Sunflowers on Damage from Primary Insect Pests in the United States

Helia ◽  
2016 ◽  
Vol 39 (64) ◽  
pp. 45-56 ◽  
Author(s):  
J. R. Prasifka ◽  
L. F. Marek ◽  
D. K. Lee ◽  
S. B. Thapa ◽  
V. Hahn ◽  
...  
Keyword(s):  
United States ◽  
North Dakota ◽  
Sunflower Seed ◽  
Insect Pests ◽  
The United States ◽  
Total Percentage ◽  
History Of ◽  
Smicronyx Fulvus ◽  
Sunflower Moth ◽  
Homoeosoma Electellum

AbstractDelayed planting is recommended to reduce damage from sunflower insect pests in the United States, including the sunflower moth, Homoeosoma electellum (Hulst) and banded sunflower moth, Cochylis hospes Walsingham. However, in some locations, planting earlier or growing later-maturing hybrids could improve yield or oil content of sunflowers which would partially offset any added costs from insect pests or their management. Because the abundance and distribution of some sunflower insects have changed since recommendations for delayed planting were developed, experimental plots were grown in 2012 and 2013 at sites in North Dakota, Nebraska, Iowa, and Illinois. Sunflowers were planted two to four weeks earlier than normal, including hybrids that flower two to three weeks later than elite commercial hybrids. The sum of seed damaged by sunflower moth, banded sunflower moth, and red sunflower seed weevil, Smicronyx fulvus LeConte, (i. e., total percentage) was influenced by location, but not the relative maturity of tested entries. However, when damage attributed solely to the red sunflower seed weevil was analyzed, more damaged seed were found for late-maturing entries in North Dakota and Nebraska. In addition to the trial data, current pest populations are lower than when delayed planting was first recommended and insecticide use during sunflower bloom is both common and effective. Together, these observations suggest factoring insect pests into planting time decisions may be unnecessary, except for areas with a history of problems with severe pests that cannot be managed using insecticides (e. g., sunflower midge, Contarinia schulzi Gagné).

A STANDARDIZED BIOASSAY FOR LARVICIDAL ACTIVITY OF BACILLUS THURINGIENSIS IN SUNFLOWER MOTH HOMOEOSOMA ELECTELLUM (LEPIDOPTERA: PHYCITIDAE)

1985 ◽  
Vol 117 (1) ◽  
pp. 15-22 ◽  
Author(s):  
R. G. Lidstone ◽  
D. W. Goerzen ◽  
G. G. Khachatourians
Keyword(s):  
Bacillus Thuringiensis ◽  
Larvicidal Activity ◽  
Standard Test ◽  
Mortality Curve ◽  
Bioassay Technique ◽  
Sunflower Moth ◽  
Homoeosoma Electellum ◽  
Third Instar Larvae

AbstractA standard test for the larvicidal activity of Bacillus thuringiensis (B.t.) against the larvae of the sunflower moth Homoeosoma electellum (Hulst) has been developed. Bioassay parameters investigated include diet preparation, concentration of B.t., effect of formaldehyde, and method of pathogen incorporation in diet. The LC50 for seconded third-instar larvae is 1.24 μg of Dipel® WP ml−1 or 19.8 IU B.t. ml−1 pathogen-incorporated diet. Layering of a pathogen-suspension upon the surface of the diet was not a reliable bioassay technique for H. electellum. The addition of formaldehyde in the diet reduced the slope of the dose–mortality curve but did not change the LC50.

Sex pheromone of the european sunflower moth,Homoeosoma nebulellum (Den. & Schiff.) (Lepidoptera: Pyralidae)

1991 ◽  
Vol 17 (7) ◽  
pp. 1399-1414 ◽  
Author(s):  
P. Zagatti ◽  
M. Renou ◽  
C. Malosse ◽  
B. Fr�rot ◽  
C. Pavis ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Lepidoptera Pyralidae ◽  
Sunflower Moth
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