| citrus mealybug (hemiptera: pseudococcidae) movement and population dynamics in an arbor-trained vineyard. | the citrus mealybug, planococcus citri (risso) (hemiptera: pseudococcidae), is the main grapevine pest in vineyards in some countries, such as spain and brazil. in galician vineyards (northwestern spain), mealybug population levels are low because the accumulated degree-days are lower than in other grapevine-growing areas. the main problem caused by mealybugs is the transmission of viruses, even at low infestation levels. the active period of citrus mealybug in the study vineyard lasted from jul ... | 2010 | 20568606 |