Charles, J.G., & Walker, J.T.S. 1981 Mealybug control in apples.. The Orchardist of New Zealand 54: 252-253.
Notes: Chemical control recomendations for Pseudococcus obscurus and Quadraspidiotus perniciosus.
Charles, J.G., & Walker, J.T.S. 1981 Mealybug control in apples.. The Orchardist of New Zealand 54: 252-253.
Notes: Chemical control recomendations for Pseudococcus obscurus and Quadraspidiotus perniciosus.