PNABD246.pdf

y disulfoton and phorate @ 1.5 kg a.i./ha as well as seed treatment with 4% of
these chemicals. Foliar application with 0.04% monocrotophos also considerably
reduced the pest damage. [AS]
*0750 Gupta, P.K. ; Singh, J. 1984. Biology of Hadurasia obscurella Jacoby,
an important pest of rainy-season pulses. INDIAN JOURNAL OF AGRICULTURAL
SCIENCES, v.54(I0):931-934. [En] [En AbstJ (A:PS)
The adult galerucid beetle, Madurasia obscurella Jacoby, was found to fees
on the leaves and the grubs on the root nodules and root hairs of mungbean
[Vigna radiata (L.) Wilczek], blackgram [Vigna mungo (L.) Hepper], cowpea
[Vigna unguiculata (L.) Walp. subsp, cylindrica (L.) Van-Eseltine], pigeoripea
[Cajanus cajan (L.) Millsp.] and lablab bean [Lablab purpureus (L.) Sweetj. The
incubation period varied from 3 to 5 days both in the laboratcry and in the
field. There were 3 larval instars. The full-grown whitish laj:vae measured 3.72
to 4.00 mm long and 0.70 to 0.85 mm across the head. The larval period varied
from 17 to 26 days. Pupation took place near the roots of host plants in the
soil. The white pupae measured 3.13 to 3.58 mm long and 1.53 to i.86 mm across
the mesothorax. The pupal period ranged from 8 to 14 days. In the tield two
generations/year were noticed on mungbean. The total life cycle ranged from 32
to 44 days. [AS]
*0751 Krishnaiah, K. ; Ramakrishnan, N. ; Reddy, P.C. 1984. Further trials
on control of Spodoptera litura Fab. by nuclear polybedrosis virus on black
gram and groundnut. INDIAN JOURNAL OF PLANT PROTECTION, v.12(i):81-83. [En]
(REP.MB-2789)
Field trials were carried out in Andhra Pradesh, India during the rabi
(cool) season of 1983-84 on the effectiveness of nuclear polyhedrosis virus
against the noctuid Spodoptera litura on blackgram (Vigna mungo) and groundnut.
The virus applied at 1500 or 750 larval equivalents/ha was found to be as
effective as the synthetic pyrethroids cypermethrin and fenvalerate, applied at
50 and 60 g/ha, respectively, in controlling the pest and increasing the yield.
[PLH
*0752 Chauhan, R. ; Dahiya, B. ; Singh, Ram ; Gupta, K.R. 1985. Occurrence
and varietal incidence of tarsonemid mite on green gram at Hissar. INDIAN
JOURNAL OF PLANT PROTECTION, v.12(2):156. LEn] (REP.MB-2786)
The relative incidence of Tarsonemus sp. on 30 cultivars of mungbean (Vigna
radiata) was assessed in Haryana, India, in 1982-1983. All cultivars were
infested. Leaf infestation varied from 32.5% in HG 33 to 70.6% in HG 32, and in
the remaining 28 cultivars from 40 to 60%. Population density on leaves did not
differ significantly between the cultivars. [THH]
*0753 Chhabra, K.S. ; Kooner, B.S. 1985. Problem of flower shedding caused
by thrips, Megalurothrips distalis (Karny), on sumr mungbean, Vigna radiata
(L.) Wilczek, and its control. TROPICAL PEST MANAGEMENT, v.31(3):186-188.
[En] [En Abst] (A:PS)
Flower shedding in summer mungbean, Vigna radiata (L.) Wilczek, is a common
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