PT  - JOURNAL ARTICLE
AU  - Morgan, David L.
AU  - Frankie, Gordon W.
TI  - Biology and Control of the Mealy-Oak Gall
AID  - 10.48044/jauf.1982.051
DP  - 1982 Sep 01
TA  - Arboriculture & Urban Forestry (AUF)
PG  - 230--233
VI  - 8
IP  - 9
4099  - http://auf.isa-arbor.com/content/8/9/230.short
4100  - http://auf.isa-arbor.com/content/8/9/230.full
AB  - Galls are commonly found on urban trees. Induced by oviposition of insects and other arthropods, galls develop from woody tree tissues, forming shelters for developing larvae. Few galls are physiologically harmful to the tree. Some, like the mealy-oak galls on live oak, are not only harmless but may harbor beneficial arthropods long after the gall-maker has departed. Because chemicals will not penetrate the gall, and the activities of the gall-formers are extended over time, the use of chemical pesticides to control gall-making is unreliable. The preferred use of resistant trees is discussed.