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ACERACEAE 
(Maple Family) 
ACER PLATANOIDES L. Norway maple* 
Acetone and water extracts of the leaves killed none of the mosquito 
larvae tested*— Hartz ell and Wilcoxon (188). 
ACS* PSEODO-PLATANUS L. Sycamore maple* 
Acetone extracts killed only 10 percent of the mosquito larvae 
tested*— Hartzell and Wilcoxon ( 188 )* 
ACER RUBRUM L. Red maple. 
ACER SACCHARIUM L* Silver maple* 
Extracts were not repellent to the Japanese beetle*- Metzger and 
Grant (277), 
ACER SACCHARUM Marsh* Sugar maple* 
Acetone and water extracts of the leaves killed none of the mosquito 
larvae tested*— Hartzell and Wilcoxon (188 )* 
AESCULACEAE 
(Horeechestnut Family) 
AESCULUS CALIFORNICA Nutt. California buokeye. 
Observations on honeybees that visited this tree showed that the 
young brood was most affected* The eggs either failed to hatch or 
produced drones* The larvae soon died and disappeared, and the pupae 
were often deformed* The emerging young adults crawled from the hives, 
and older adults died prematurely* The queens ceased laying or became 
drone layers* The colonies were weakened or killed*— Durnside and Vansell 
(72). 
This plant has taken a heavy toll from the beekeepers of California* 
The brood of bees was seriously affected when fed products of this tree* 
The eggs failed to hatch and oviposition might cease entirely* Immature 
and deformed dead bees accumulated at the hive entrances* On rare oc- 
casions the adult field bees feeding on buckeye blossoms became pnralyzed 
and died in alarming numbers*— Vansell and coworkers ( 409 ) * 
Flours made from the nuts were toxic to the Mexican bean beetle, 
when applied to bean foliage* Adults and second inetars died within 3 
days after eating the hulls or meat, and the newly hatched larvae died 
2 days after eating the meat* Neither the meat nor hull flour was a 
violent poison, heavy doses being required to kill the insects within 
2 or 3 days*— Apple and Howard (U. S. Bur* Ent* and Plant Quar* News 
Letter 7(ll): 23-25. 1940). 
