Bulimulus bonariensis (Rafinesque) (Gastropoda: Bulimulidae)
Bulimulus snails present a major challenge to growers of citrus and other crops that depend on irrigation. The snails can be responsible for significant defoliation under certain circumstances (such as when trapped with citrus under protective screen) and occasional girdling of trees. However, they are better known for their interference with irrigation. Bulumulus are attracted to moisture, and as a result seek out and subsequently block irrigation intended for the trees. This results in inefficient watering, which can contribute to tree decline and mortality. These snails occur in high numbers in citrus groves and elsewhere, yet currently, there are very few management options available. Current chemical controls are extremely toxic to vertebrates, and cultural controls are, anecdotally, limited in efficacy. Given the challenges posed by this snail, there is a need to develop alternative means to reduce Bulumulus pressure. To this end, the feasibility of a classical biological control program for B. bonariensis will be explored, and its natural enemies already present will be documented.
Bulimulus also present as nuisance pests for homeowners. Photo credit: University of Florida