Sunflower varietal resistance to sunflower moth larvae
AuthorsElmer C. Carlson
Paul F. Knowles
John E. Dillé
Authors AffiliationsElmer C. Carlson is Specialist, Department of Entomology, University of California, Davis; Paul F Knowles is Specialist, Department of Entomology, University of California, Davis; John Dillé, made the seed sections and took the microphotographs John Campbell, Nurseryman in Entomology, assisted with the field and seed evaluations.
Hilgardia 26(6):11-13. DOI:10.3733/ca.v026n06p11. June 1972.
Damage to sunflower heads and seeds by larvae of the sunflower moth, Homoeosoma electellum (Hulst), is usually economically important. As an alternative to chemical methods of control, it appears that resistant sunflower varieties can be developed. Resistance or tolerance to larval feeding by the sunflower moth has been found in a few of our varieties, but only in those plants with a phytomelanin layer in the hull of the seed. Russian scientists, who term this the “armored layer,” have found that this layer offers resistance to the larvae of the species of the sunflower moth commonly found in Russia.
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Effects of irrigation and fertilizer on INIA 66 wheat …yields, protein, and bushel weights
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