RT Journal Article
SR Electronic
T1 Biology and Management of <em>Allokermes Kingii</em> (Hemiptera: Kermesidae) on Oak Trees (<em>Quercus</em> SPP.)
JF Arboriculture &amp; Urban Forestry (AUF)
FD International Society of Arboriculture
SP 198
OP 202
DO 10.48044/jauf.2005.025
VO 31
IS 4
A1 Turner, Jay Cee L.
A1 Buss, Eileen A.
YR 2005
UL http://auf.isa-arbor.com/content/31/4/198.abstract
AB The northern red-oak kermes scale, Allokermes kingii (Cockerell), is a native, gall-like scale insect found on oak trees (Quercus spp.) in the United States. Its feeding causes branch dieback, flagging, reduced growth rates, and occasionally tree death. Allokermes kingii has one generation a year throughout most of the United States, but we found two generations a year in Florida. It also infests Q. geminata Small and Q. virginiana Miller, which represent new host records. The insecticides tested (acephate, bifenthrin, imidacloprid, horticultural oil, and combined acephate and oil) appeared to suppress the nymphal population, but none caused &gt;42% mortality. Very few natural enemies occurred on the study trees, and were thus considered ineffective at reducing the scale population at this site.