PNABD246.pdf

The experiments were conducted-smal-1l--jute--bags which were prepared out
of four different jute cloths. The bags were filled with sterilized mungbean
and were stitched by a spiral seaming method so as not to give any access to
the bruchids for entry from the stitched end. Then the bags were separately put
in glass jars in which ten pairs of freshly hatched bruchids were introduced.
All the jars were kept at a constant temperature of 30 C. Observations carried
out for a period of 7 days showed that a number of eggs were laid on mungbeans
which were exposed because of looseness of the weave of jute cloth. These
studies showed that bruchid infestation in mungbeans stored in jute bags
greatly dependent on the type of jute cloth used. [THH]
*0758 Lin, T. 1964. Laboratory test of chemicals for Callosobruchus
chinensis control. JOURNAL OF TAIWAN AGRICULTURAL RESEARCH, v.13(2):55-58.
[Ch] [Ch Abst] (REP.MB-891)
(NOTE: English summary by Chu, Y.I.)
In a laboratory feeding preference trial of Callosobruchus chinensis,
insect infestation was maximum on adzuki bean followed by mungbean and minimum
on soybean. Pea and peanut were not infested. Mungbeans coated with
bromocyclen, chlorbycyclen, premium malathion, malathion and lindane were
tested for controlling the pest. On the basis of residual duration of newly
hatched larvae, bromocyclen and chlorbycylen were the best and followed by
lindane, malathion and premium malathion. A coating of 0.4 to 0.5 kg of 5%
bromocyclen or 5% chlorbycylen on 1000 kg seeds was recommended for controlling
the pest. This treatment would also prevent infestation of other stored pests.
ITHH]
*0759 Borkovec, A.B. ; Nagasawa, S. ; Shinohara, H. 1968. Sterilization of
the adzuki bean weevil, Callosobruchus chlnensis, by metepa and hempa.
JOURNAL OF ECONOMIC ENTOMOLOGY, v.61(3):695-698. [En] [En Abst] (REP.MB-0370)
Adzuki bean weevils, Callosobruchus chinensis (L.), were sterilized with
metepa by topical application, dipping, contact treatment, and fumigation.
These methods are suitable for bioassay of metepa and for testing other
candidate chemosterilants. The sterilizing effects were permanent and their
intensity increased with time elapsed after treatment. With topical
application, the median dose that inhibited oviposition was 29.499 microgram
per weevil, the LD50 was 177.79 microgram per female and 117.64 microgram per
male, and the median sterilizing dose was 0.940 microgram per weevil. When the
weevils were dipped in solutions of metepa, hempa, and a 1:19 mixture of metepa
and hempa the concentration-unhatchability regression lines were parallel,
indicating a similar action of the 2 chemosterilants. In all experiments both
sexes were treated with equal amounts of sterilant. Results were analyzed
statistically, and appropriate regression equations were calculated. [AS]
*0760 Jotwani, M.G. ; Bori, Y.P. ; Sircar, P. ; Dishpande, A.D.D. 1968.
Neem seed as a protectant against bruchid Callosobruchus maculatus (Fab.)
infesting some leguminous seeds. IN: Proceedings [of the] second annual
workshop conference on pulse crops. New Delhi : ICAR. 2p. [En] (REP.MB-1424)
MEETING: Annual Workshop Conference on Pulse Crops, 2nd -- New Delhi, India,
Apr 1-3, 1968
199