PNABD246.pdf

do relatively little damage. A parasite, Plutarchia sp. (Eurytomidae) was found
to parasitize the beanfly while Lamprosema diemenalis Guen. was parasitized by
a braconid Apanteles sp. Prodenia litura F. takes 40.2 days to develop from egg
to adult. [AS]
*0625 Saxena, H.P. ; Siagh, Y. ; Phokela, A. 1973. Effect of date of sowing
on pest incidence. IN: Proceedings [of the] ninth workshop (kharif pulses).
New Delhi : Indian Council of Agricultural Research. p.115. (REP.MB-1471)
MEETING: Workshop [on] kharif Pulses, 9th -- New Delhi, India, Jun 7-9,
Four weekly sowings of blackgram S.1 was carried out in four replicated
plots of 1.5 m x 3.0 m each. The crop was not protected with insecticides.
Observations on the damage to the leaves due to the galerucid beetle were
recorded twice in the crop sown on different dates. The maximum damage was
observed during the second observation. Later, infestation of jassid (Empoasca
kerri Pruthi) was also observed in the crop sown ou different dates and a
number of nymphs and adults of the jassids per plant were counted. Damages to
pods by blue butterfly larvae were recorded at the time of maturity. [AS]
*0626 Singh, S.R. 1973. Entomological research activities at IITA. IN:
©[pProceedings of the first IITA grain legume improvement workshop. Ibadan
International Institute of Tropical Agriculture. p.279-281 [En] (REP.MB-1055)
MEETING: IITA Grain Legume Improvement Workshop, ist -- Ibadan, Nigeria,
Oct 29-Nov 2, 1973
The susceptibility of 7 species of grain legumes to pest insects was
evaluated. Cajanus cajan, Vigna mungo, and V. umbellata were significantly less
damaged by Laspeyresia ptychora and coreid bugs than were V. unguiculata,
Phaseolus lunatus, V. radiata and Glycine max. [THH]
*0627 Agnihotri, N.P. ; Pandey, S.Y. ; Jain, H.K. 1974. Persistence of BBC
and aldrin in soil and translocation in mung (Phaseolus aureus L.) and lobla
(Vigna sinensis siva). INDIAN JOURNAL OF ENTOMOLOGY, v.36(4):261-267. [Enj
[En Abst] (REP.MB-1344)
Lindane and aldrin dusts were applied in furrows at the rate of 10 kg
a.i./ha at the sowing time which resulted in residues of 16 ppm lindane and 12
ppm aldrin. At the end of 100 days, 97.5% lindane and 87.9% aldrin was lost
from the soil. Aldrin was found to be converted into dieldrin and the maximum
concentration was reached on the 30th day after treatment; 80.8% of this
recovered dieldrin degraded during the subsequent 70 days period. Residues of
lindane and aldrin translocated in mungbean and cowpea. The translocation was
faster in cowpea than in mungbean. The absorption of aldrin was slightly higher
than lindane. Aldrin moved in plants principally in the form of dieldrin which
degraded rapidly in stem, leaves and pods. At the harvest time, in aldrin
treated plots, mungbean contained 0.12 ppm aldrin and 0.03 ppm dieldrin and the
relative concentration in cowpea was 1.12 ppm aldrin and 0.09 ppm dieldrin. In
lindane treated plots, mungbean and cowpea contained 0.04 and 3.75 ppm lindane,
respectively. [AS]
160
1973