-17- 
ANNONACEAE 
( Custard-Apple Family) 
ANNONA CHERIMOLIA Mill. Synonym: A. tripetala Ait. Cherimoya. 
The seed was used as an insecticide.— Greshoff ( 170 , p. 12). 
ANNONA GLABRA. L. Synonymx A. palustria L. Alligator-apple. Pond-apple. 
The powdered seeds were used as an insectioide.— Maisch (262 ). 
Alcoholic extraots of the leaves, stems, and roots of this plant 
from Ceylon were tested against the ohrysanthemum aphid, ^he stems and 
roots were not toxio, but the leaves were moderately toxic. — Tatter sfield 
and Potter ( 395 )« 
ANNONA MURTCATA L. Sour sop» 
Extracts of the leaves, stems, roots, and seeds were tested against 
aphid Macroslphoniell a sanborni (Gill.). The seeds were the most toxic, 
but not enough to make this plant of any value as an insecticide •-- 
Tattersfield and Potter (395 ). 
ANNONA RETICULATA L. Custard-apple. 
The powdered seed was used as an insecticide.— Maisch ( 262 ) « 
This plant is widely distributed in India. Alcoholic extracts of 
the seeds and stem bark were tested sgainst adult grasshoppers, Epecromia 
tamulus (F.). A 3-percent extract of the seeds killed 80 percent, a 4- 
percent extract 90 percent, and a 5-percent extract 100 percent. The 
same extracts of the stem bark killed 40, 70, and 100 percent, respec- 
tively. Alcoholic extracts of the stem berk, seeds, leaves, snd root 
bark were tested against caterpillars, Prodenla litura (F»), Hyps a 
ficus (F»), Acheae Janata (L.), Euproctis fraterna (Moore), Plutella 
macullpennis (Curt.), and Crocidolomia binotalis Zeller. The 3- and 
5-percent extracts of the seeds, leaves, and root bark were always 
efficient while those of the stem bark were sometimes efficient. 
Alcoholic extracts were also tested against nymphs of the mango hopper 
( ldloceru8 sp.)» A 5-percent extract of the leaves and of the root 
bark each killed 100 percent of them. Powdered seeds dusted on beetles, 
C al lo s obruohus chinensls (L.), killed 80 percent of them in 42 hours.— 
Puttarudriah and Subramaniam ( 31l ). 
This is one of three plants in Mysore, India, found to have great 
inseoticidal value. The seed contains the insecticidal principle.— 
Subr amani am (385 ) • 
Alcoholic extracts of the leaves, stems, roots, and s^ed from 
Ceylon were tested against the ohrysanthemum aphid. The leaves had 
a measure of toxicity, the stems and roots were not toxic, but the 
