-18- 
seeds were pronouncedly toxic. In other teste, in which A. reticuleta 
and Derris elliptica (rotenone content 9 percent) were compared, the 
root of Derris was decidedly more toxic to bean aphids than any part 
of Annon aj the root of Derris paralyzed 96 percent of the beetle, 
Oryzaephilus surinamgnsis (L.), tested, while the root of Annona par- 
alyzed only 14,5 percent. An alcoholic extract of the seed was in- 
effective as a stomach poison or deterrent against larvae of a moth. 
An ether extract of the seed was much less toxic than nicotine to aphids, 
but it had a delayed action which is advantageous to a contact insecti- 
cide.--Tattersfield and Potter ( 395 ) • 
Ccmmeri* ■■ r vi.ewer .— More work should be done with the custard- 
apple. 
ANNONA SPINES CENS Mart. 
The seeds, either finely powdered or in the form of a decoction, 
were used as an insecticide. — Greshoff (170 , p. 12). 
The pulp was used as a fish poison and for killing noxious insects.-- 
Dragendorff ( 121 , p. 216). 
ANNONA spp. 
The seeds of A. cherimolia, A. murlcata , and A. squamosa were 
used crushed to poTson fish in rivers. The milky "J u i ce °f "the seeds 
was a remedy for soabies and was also used for destroying insect pests. — 
Soarone (363 ). 
ANNONA SQUAMOSA L. Sugar- apple. 
The seeds contain a highly acrid principle said to be fatal to 
insects, for which purpose the natives in India used them. The dried 
immature fruit was used for washing the hair to destroy vermin.— Murray 
( 290 , p. 72). 
The seeds were used against head lice.— Greshoff ( 170 , p. 11). 
This species is cultivated in Brazil, and its leaves are used ps 
an insecticide.— Barcellos Fagundes (51). 
An extract of the seeds mixed with kerosene was tested as a 
mosquito larvicide, but poor results were obtained.— Wats and Bharucha 
(420). 
Alcoholic extracts of the leaves, stems, and roots of this plant 
from Ceylon were tested against the chrysanthemum aphid. The stems had 
no toxicity, the roots a slight toxicity, but the leaves had a high 
toxicity. — Tattersfield and Potter (395). 
