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Current IssueEditorial BoardOnline First ArticlesArchive

volume 26 issue 3 (september 2003) :

LABORATORY ASSAY FOR THE EVALUATION OF COWPFA RESISTANCE TO FEEDING BY ADULTS OF RLPTORTUS DENTIPES (F.) (HEMIPTERA: ALYDIDAE) IN DUAL CHOICE TESTS

O
Ogbalu O.K.*
O
Okwakpam B.A.
1Department of Biological Sciences, Rivers State University of Science and Technology, Nkpolu, Port Harcourt, Nigeria.

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Cite article:- O.K.* Ogbalu, B.A. Okwakpam (2025). LABORATORY ASSAY FOR THE EVALUATION OF COWPFA RESISTANCE TO FEEDING BY ADULTS OF RLPTORTUS DENTIPES (F.) (HEMIPTERA: ALYDIDAE) IN DUAL CHOICE TESTS. Legume Research. 26(3): . doi: .

ABSTRACT

The feeding index, feeding severity and preference ratio of adults R. dentipes were investigated in ten cowpea varieties (IT84S -2246-4, IT86D-715, IT86D-1010, IT87D-94-1 OBRIKOM-l84 IT87D1134, IT82D-789, IT84S-124, L-80 and He Brown). The number of seeds attacked and the degree of penetration were compared with those of the susceptible and resistant controls (IT84E -124 and IT82D -789 respectively). Extensive feeding was obtained on IT86D -1010, IT87D -941 -I, OBRIKOM -184, and He Brown, Their preference ratio (PR) was very high as against the low values for IT86D -715 and IT84S -2246 -4. The preference ratio for the susceptible check, IT84E -124 was significantly higher than that for the resistant check, IT8D -789 W

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