PNABD246.pdf

- Cyst Nematode, Ring Nematode and Lesion Nematode
*0607 Epps, J.M. ; Chambers, A.Y. 1959. Hung bean (Phaseolus aureus), a
host of the soybean cyst nematode (Heterodera glycines). PLANT DISEASE
REPORTER, v.43(9):981-982. [En] [En Abst] (REP.MB-0016)
Mungbean (Vigna radiata) is reported to be a suitable host for the soybean
cyst nematode (Heterodera glycines). Two varieties, Oklahoma 12 and Kiloga,
were very susceptible, while a jumbo strain was free of white females when
grown under conditions favorable for nematode development. [AS]
*0608 Acharya, A. ; Das, S.N. 1983. Host range and pathogenicity of
Macroposthonia ornata on ragi (Eleusine coracana Gin). INDIAN JOURNAL OF
NEMATOLOGY, v.13(.):9-15. [En] [En Abstj (REP.MB-2644)
Among nineteen selected crop plants, tested as possible hosts of
Macroposthonia ornata only rice was found to be an excellent host; while
cabbage, cauliflower, corn, okra, cowpea, sorghum, bajra, mustard and ragi were
good hosts; brinjal, garden pea, chilli, blackgram, mungbean, soybean and
tomato were fair hosts; and cucumber and niger were considered to be the poor
hosts. [AS]
*0609 Egunjobi, O.A. 1984. Effects of intercropping maize with grain
legumes and fertilizer treatment on populations of Pratylenchus brachyurus
Godfrey (Nematoda) and on the yield of maize (Zea mays L.). PROTECTION
ECOLOGY, v.6(2):153-167. [En] [En Abstj (REP.MB-2528)
In tropical Nigeria, the population structure of Pratylenchus brachyurus is
significantly affected by food source, cropping systems, the use of NPK
fertilizer, the seasons and the years. Reproduction is continuous throughout
the year, but most evident at crop growth periods. The low moisture intercrop
periods between January and February usually act as natural checks. NPK
fertilizer application increases the numbers of P. brachyurus more in soil
under monoculture maize plots than in plots sown with maize in association with
cowpea, groundnut or mungbean. When applied only once annually on the early
crop, it improved the early season maize yield but reduced the yield in the
late seasons. The late crop yield decline is coincidental with increases in the
nematode population, and the nematode appears to constitute one of the limiting
factors. Growing maize in association with cowpea, groundnut or mungbean also
increases P. brachyurus populations, with no detrimental consequences for maize
yield. [AS]
*0610 Fagbenle, H.H. ; Edwards, D.I. ; Malek, R.B. 1986. Cyst production by
two geographical isolates of Heterodera lespedezae on selected legumes. PLANT
DISEASE, v.70(7):643-b44. [Enj [En Absti (A:PS)
Cyst production by isolates of Heterodera lespedezae from Illinois and
North Carolina populations was c:ompared on 14 species of legumes. Twelve
species [including adzuki bean, green bean, mungbean, and garden pea] were
hosts for both isolates, ranging from good to very poor. There were significant
differences between isolates on four species. The Illinois isolate produced
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