Larinus minutus(Coleoptera: Curculionidae), A Biological Control Agent of Spotted Knapweed (Centaurea stoebessp.Micranthos), Established in Northern Arkansas
نویسندگان
چکیده
منابع مشابه
Phenology and dispersal of Larinus minutus Gyllenhal and Larinus obtusus Gyllenhal (Coleoptera: Curculionidae), two biological control agents of Centaurea stoebe ssp. micranthos (spotted knapweed) in Michigan
a r t i c l e i n f o
متن کاملInteractions and effects of multiple biological control insects on diffuse and spotted knapweed in the Front Range of Colorado
Abundances and interactions among biological control insects and their effects on target invasive plants were monitored within the flower heads and roots of diffuse knapweed, Centaurea diffusa, and in spotted knapweed, Centaurea stoebe, along the Colorado Front Range. Flower weevils, (Larinus species) and root-feeders (Cyphocleonus achates and Sphenoptera jugoslavica) were released on knapweed ...
متن کاملInfluence of seed head-attacking biological control agents on spotted knapweed reproductive potential in western Montana over a 30-year period.
Five insect biological control agents that attack flower heads of spotted knapweed, Centaurea stoebe L. subsp. micranthos (Gugler) Hayek, became established in western Montana between 1973 and 1992. In a controlled field experiment in 2006, seed-head insects reduced spotted knapweed seed production per seed head by 84.4%. The seed production at two sites in western Montana where these biologica...
متن کاملSuccessful biological control of diffuse knapweed, Centaurea diffusa, in British Columbia, Canada
The biological control program for diffuse knapweed, Centaurea diffusa Lamarck, a Eurasian plant that has invaded large areas of grasslands in western North America, has gone on for over 35 years. This program involved the release of 12 biological control agents of which four are numerous and widely distributed; two species of Tephritid flies, Urophora affinis and Urophora quadrifasciata, the r...
متن کاملThe case against (-)-catechin involvement in allelopathy of Centaurea stoebe (spotted knapweed).
Proving allelopathic chemical interference is a daunting endeavor, in that production and movement of a phytotoxin from a donor plant to a receiving plant must be demonstrated in the substrate in which the plants grow, which is usually a complex soil matrix. The soil levels or soil flux levels of the compound generated by the donor must be proven to be sufficient to adversely affect the receivi...
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ژورنال
عنوان ژورنال: Florida Entomologist
سال: 2011
ISSN: 0015-4040,1938-5102
DOI: 10.1653/024.094.0233