EurekaMag.com logo
+ Site Statistics
References:
52,654,530
Abstracts:
29,560,856
PMIDs:
28,072,755
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on LinkedInFollow on LinkedIn

+ Translate

Effect of fall cutting and alfalfa weevil on alfalfa yields and forage quality



Effect of fall cutting and alfalfa weevil on alfalfa yields and forage quality



Journal of Agricultural Entomology 8(2): 137-146



Alfalfa weevil, Hypera postica (Gyllenhal), density had significant impact on yield and quality of harvested forage in the spring. Carry-over effects on yields and quality of subsequent harvests also were evident in one of two yearly studies. In the first study, plots of 'Cimmaron" alfalfa cut late (twice harvested) in the fall had higher weevil populations and produced lower yields in the subsequent spring than plots harvested only once in the fall season. Alfalfa weevil damage resulted in lower crude protein levels and higher fiber contents. Fall harvest regimes in the second study had no effect on alfalfa weevil densities or yields of 'Pioneer 523' and 'Southern Special,' and differences in forage quality were not significant in either of these regionally-adapted varieties. Alfalfa weevil density treatments imposed on each of two fall cutting regimes by differential insecticide application in both years resulted in decreased yields of about 1 metric ton/ha for each seasonally maintained increase of one weevil per stem.

(PDF emailed within 1 workday: $29.90)

Accession: 002082200

Download citation: RISBibTeXText



Related references

Effect of overseeding forages into alfalfa on alfalfa weevil, forage yield and quality. Journal of Agronomy and Crop Science 187(2): 75-81, 2001

Effect of overseeding forages into alfalfa on alfalfa weevil, forage yield and quality. Journal of Agronomy and Crop Science 187(2): 75-81, 2001

Impact of alfalfa weevil larval feeding on the quality and yield of 1st cutting alfalfa. Journal of Economic Entomology 69(6): 749-754, 1976

Impact of alfalfa weevil larval feeding on the quality and yield of first cutting alfalfa. Journal of Economic Entomology 69(6): 749-754, 1976

Alfalfa medicago sativa l cimmaron alfalfa weevil hypera postica gyllenhal alfalfa weevil control on alfalfa north carolina usa 1990. Insecticide & Acaricide Tests : 126-127, 1991

Yield and forage quality of glandular-haired alfalfa under alfalfa weevil (Coleoptera: Curculionidae) and potato leafhopper (Hemiptera: Cicadellidae) pest pressure in Virginia. Journal of Economic Entomology 99(4): 1235-1244, 2006

Alfalfa medicago sativa l oneida vr alfalfa weevil hypera postica gyllenhal alfalfa weevil control in alfalfa 1990. Insecticide & Acaricide Tests : 138, 1991

Effect of insecticides applied to resistant and susceptible varieties of alfalfa on spotted alfalfa aphid and alfalfa weevil. 1978

Effect of alfalfa weevil feeding on alfalfa quality. J Econ Entomol 60(2): 601-602, 1967

Alfalfa medicago sativa l buffalo alfalfa weevil hypera postica gyllenhal alfalfa weevil control missouri usa southern 1989. Insecticide & Acaricide Tests : 123-124, 1991

Alfalfa medicago sativa l jacques chief alfalfa weevil aw hypera postica gyllenhal alfalfa weevil control in illinois usa 1990. Insecticide & Acaricide Tests : 135-136, 1991

Alfalfa medicago sativa l buffalo alfalfa weevil hypera postica gyllenhal alfalfa weevil control missouri usa northern 1989. Insecticide & Acaricide Tests : 123, 1991

Alfalfa medicago sativa apollo alfalfa weevil hypera postica gyllenhal control of alfalfa weevil larvae in tennessee usa 1990. Insecticide & Acaricide Tests : 137-138, 1991

Alfalfa medicago sativa l pioneer 5432 alfalfa weevil hypera postica gyllenhal alfalfa weevil control missouri usa 1990. Insecticide & Acaricide Tests : 125, 1991

Alfalfa medicago sativa l cimarron alfalfa weevil aw hypera postica gyllenhal evaluation of insecticides for control of alfalfa weevil larvae 1990. Insecticide & Acaricide Tests : 127, 1991