rom AR,EVIEW OF THE LITERATURE, 1941- 1953

CYNANCHUM sp.
The plant showed little toxicity to silkworm
and Mexican bean beetle larvae and
to bean aphids.--Lee and Hansberry (ill).
DAEMIA EXTENSA R. Br.
DAEMlA TOMENTOSA Pome!. Synonym: D.
cordata.
An aqueous extract of D. extensa was very
toxic to American cockroaches when injected
into the blood stream, but German
cockroaches and milkweed bugs were unaffected
after immersion in the extract.
An extract of D. tomentosa was toxic to
both species of cockroaches but not to
milkweed bugs. - -Heal and coworkers (93).
EDISONIA PUBIFLORA (Decne.) Small.
An aqueous extract of the roots was toxic
to American cockroaches, somewhat toxic
to German cockroaches, and nontoxic to
milkweed bugs.--Heal and coworkers (93).
FUNASTRUM BONARIENSE (Hook. & Arn.)
Schlechter.
An aqueous extract of the stems anc;lleaves
was nontoxic to German and American cockroaches
and milkweed bugs.--Heal and coworkers
(93).
FUNASTRUM GRACILE (De cne. )Schle chter.
An aqueous extract of the stems was
toxic to American cockroaches but not to
German cockroaches and milkweed bugs.
Alcohol, petroleum ether. and chloroform
extracts were somewhat toxic to larvae of
the black carpet beetle and webbing clothes
moth but nontoxic to German cockroaches,
milkweed bugs, confused flour beetles, and
Aedes mosquito larvae.--Heal and coworkers
f93).
GONOLOBUS GONOCARPOS (Walt.) Perry.
Synonym: Vincetoxicum gonocarpos.
A.queous extracts of the pods, roots, and
stems and leaves were all nontoxic to German
and American cockroaches and milkweed
bugs.--Heal and coworkers (93).
GONOLOB US LAEVIS Michx.
An aqueous extract of the whole plant was
somewhat toxic to American cockroaches
when injected into the blood stream, but
32
German cockroaches and milkweed bugs
were unaffected after immersion in the
extract. - -Heal and coworkers (21).
IBATIA MARITIMA (L.) Decne.
An aqueous extract of the roots was nontoxic
to German and American cockroaches
and milkweed bugs.--Heal and coworkerS
(93).
LACHNOSTOMA ARIZONICUM Gray.
An aqueous extract of the stems was
nontoxic to American cockroaches.- -Heal
and coworkers (93).
MARSDENIA CLA.USA R. Br.
An aqueous extract of the stems and
leaves was nontoxic to American and German
cockroaches. Alcohol, petroleum ether,
and chloroform extracts of the leaves
showed some toxicity to black carpet beetle
larvae but not to German cockroaches,
milkweed bugs, and larvae of the webbing
clothes moth and Aedes and Anopheles
mosquitoes.--Heal and coworkers (93).
MARSDENIA CUNDURANGO Nichols. Condurango.
An acetone extract of the bark was nontoxic
to mosquito larvae.--Hartzell (90).
An aqueous extract of the bark was nontoxic
to German and American cockroaches
and milkweed bugs.--Heal and coworkers
(93 ).
MARSDENIA MACROPHYLLA Fourn.
An aqueous extract of the roots was nontoxic
to German and American cockroaches
and milkweed bugs.--Heal and coworkers
(93 ).
MELLICHAMPIA LIGULAT A.
An aqueous extract of the stems was toxic
to American cockroaches when injected into
the blood stream, but German cockroaches
were unaffected after immersion in the
extract.--Heal and coworkers (93).
MORRENIA BRACHYSTEPHANA Griseb.
An aqueous extract of the stems and leave s
was nontoxic to German and American cockroaches
and milkweed bugs.--Heal and coworkers
(93).