Biological control of russian thistle
AuthorsR. B. Hawkes
R. D. Goeden
D. W. Ricker
Authors AffiliationsR. B. Hawkes is Research Entomologist, Biological Control of Feeds Laboratory, USDA-ARS, Western Region, Albany, California; R. D. Goeden is Associate Professor of Biological Control, Department of Entomology, University of California at Riverside; A. Mayfield is Agriculture Research Technician, Biological Control of Feeds Laboratory, USDA-ARS, Western Region, Albany, California; D. W. Ricker is Staff Research Associate, Division of Biological Control, Department of Entomology, University of California at Riverside.
Hilgardia 29(4):3-4. DOI:10.3733/ca.v029n04p3. April 1975.
Russian thistle (Salsolu iberica Sennen and Pau), a plant native to Eurasia, has become a widespread weed in California and other western states. In these areas it serves as a favored alternate host plant for the beet leafhopper, Circlulifer tenellus (Baker), vector of the destructive “curly top” virus of such crops as sugar beets, tomatoes, and melons. The plant also harbors a variety of other insect pests such as lygus and stink bugs. These large, bushy “tumbleweeds” are common sights on neglected or abandoned croplands, vacant residential and industrial lands, and highway and railroad right of ways. The plants fracture at the base at maturity and scatter seeds as they are blown about by the wind. Tumbleweeds fill irrigation and drainage canals, pile up against fence and buildings, fill backyards and swimming pools, and startle motorists who encounter them while driving. Unsightly accumulations of the dead, dry plants are not only difficult to remove, but also create fire hazards and traps for other windblown debris.
Also in this issue:Is the cow a white elephant?
Food system coordination
Urbanization and streamflow in the Berkeley hills
Effect of additive on corn and oat silage preservation
Sealing bunker silos: Effect on silage losses
Wax and meal changes in jojoba seed development
Lesion nematode control in apples
Root-knot nematode control in cantaloupe
Surface runoff in dairies
Sunburn protection for newly-grafted Payne walnuts
Comparative studies with labeled herbicides on woody plants