The above photos are of infestations the dogs located in a vineyard. Photos: (left) is of a female VMB with an egg sac in a 'no-low infestation' area; (right) is of very young female VMB with ants in an area known to have infestation.


Vine mealybugs (VMB) Planococcus ficus are spreading throughout California vineyards.  It is a troublesome pest that can do serious damage to crops.  If detected early there is more success in eradicating the pest from the vineyard.  Also, studies have shown that if VMB are detected early, nontoxic and organic methods such as predatory insects can be used. 

VMB are small white insects that feed off of grape vines.  The males are winged and have the capability of flying in order to mate with the females.  The females can not fly and do not move much once they find a suitable environment.  Females can be moved and 'tended' by ants which will protect them from predators.  They excrete a large amount of honeydew which will create mold growth.  VMB can also be a vector for viral diseases. 

Detection is commonly done by setting out VMB pheromone lures to attract the males.  Once the males have been detected the extent and location of the infestation will need to be determined.  Current treatments include insecticides, hot water dips, and predatory insects to name a few.

For more information on VMB please go to http://vinemealybug.uckac.edu/VMB.htm .