| influence of weeds on argentine ant (hymenoptera: formicidae) and obscure mealybug (hemiptera: pseudococcidae) in a central california vineyard. | obscure mealybug is a pest of grapes in the cool climate regions of coastal california, is found on some vineyard weeds, and is tended by the argentine ant. a study was conducted at a vineyard in arroyo grande, ca, to evaluate the impact of weeds on ant activity on grapevines, and the role that ants and weeds have on obscure mealybug infestation in grape clusters. the incidence of the fungus botrytis cinerea was recorded as well. treatments were weed exclusion versus the presence of weeds, and a ... | 2014 | 25026682 |