Field Evaluation Of Ageratum Conyzoides (Goat Weed), Ricinus Communis (Castor Seeds) And Allum Stivum (Garlic) Aqueous Extracts On The Control Of Insect Pests Of Cowpea (Vigna Uniguiculata (L) Walp.) In Umudike, Abia State, South Eastern Nigeria
ABSTRACT
The study was conducted at the humid
rainforest zone of South — Eastern Nigerian in Urnudike in Abia State, at
Michael Okpara University of Agriculture to evaluate, Ageratuin conyzoides
(Goat weed) A ilium sativum (Garlic). Ricinus communis (Castor seed) aqueous
extracts on the control of some key field insect pests of cowpea Vigna unguiculata
(L) Waip. The study which was carried out between September and December 2007
consisted of using the following aqueous extracts of Goat weed, garlic and
Castor seed applied at once a week, twice — a — week, thrice — a — week and
control. The experiments were laid out in a Randomized Complete Block Design
(RCBD) with three replications. The results obtained showed that the plant
extracts were very effective and they significantly (P < 0.00 1) reduced the
population of some key insect pests - Ooctheca inutablis, Zonozerus variegatus,
Clavigralla tomentosicolis (Stals) and Nezara viridula (L). The results also
showed that once a week, twice a week and thrice a week application regimes of
the extracts were highly significant than the control plots on infestation
level of all the nine insect pests that were checked. There is a significant
reduction of infestation by pod borer and pod sucking bugs as can be seen in
Clavigralla tomentosicolis, Anoplocnemis curvipes but did not significantly
differ from C. tomentosicolis and Mirperus jaculus (P > . 001). Once, twice
and thrice weekly spray regimes of the extracts did not have significant effect
on the control of Nezara viridula and Riptortus dent ipes on cowpea. Therefore,
Goat weed once a week, and twice a week, castor seed once a week, twice a week
and Garlic once a week, twice a week aqueous extracts spraying could be
recommended for use to poor farmers who may not be able to afford the cost of
synthetic insecticides, for mitigating the attack of some key insect pests of
cowpea control to increase crop yield.
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EZE, L (2021). Field Evaluation Of Ageratum Conyzoides (Goat Weed), Ricinus Communis (Castor Seeds) And Allum Stivum (Garlic) Aqueous Extracts On The Control Of Insect Pests Of Cowpea (Vigna Uniguiculata (L) Walp.) In Umudike, Abia State, South Eastern Nigeria . Repository.mouau.edu.ng: Retrieved Apr 24, 2024, from https://repository.mouau.edu.ng/work/view/field-evaluation-of-ageratum-conyzoides-goat-weed-ricinus-communis-castor-seeds-and-allum-stivum-garlic-aqueous-extracts-on-the-control-of-insect-pests-of-cowpea-vigna-uniguiculata-l-walp-in-umudike-abia-state-south-eastern-nigeria-7-2
LOUISA, EZE. "Field Evaluation Of Ageratum Conyzoides (Goat Weed), Ricinus Communis (Castor Seeds) And Allum Stivum (Garlic) Aqueous Extracts On The Control Of Insect Pests Of Cowpea (Vigna Uniguiculata (L) Walp.) In Umudike, Abia State, South Eastern Nigeria " Repository.mouau.edu.ng. Repository.mouau.edu.ng, 08 Jul. 2021, https://repository.mouau.edu.ng/work/view/field-evaluation-of-ageratum-conyzoides-goat-weed-ricinus-communis-castor-seeds-and-allum-stivum-garlic-aqueous-extracts-on-the-control-of-insect-pests-of-cowpea-vigna-uniguiculata-l-walp-in-umudike-abia-state-south-eastern-nigeria-7-2. Accessed 24 Apr. 2024.
LOUISA, EZE. "Field Evaluation Of Ageratum Conyzoides (Goat Weed), Ricinus Communis (Castor Seeds) And Allum Stivum (Garlic) Aqueous Extracts On The Control Of Insect Pests Of Cowpea (Vigna Uniguiculata (L) Walp.) In Umudike, Abia State, South Eastern Nigeria ". Repository.mouau.edu.ng, Repository.mouau.edu.ng, 08 Jul. 2021. Web. 24 Apr. 2024. < https://repository.mouau.edu.ng/work/view/field-evaluation-of-ageratum-conyzoides-goat-weed-ricinus-communis-castor-seeds-and-allum-stivum-garlic-aqueous-extracts-on-the-control-of-insect-pests-of-cowpea-vigna-uniguiculata-l-walp-in-umudike-abia-state-south-eastern-nigeria-7-2 >.
LOUISA, EZE. "Field Evaluation Of Ageratum Conyzoides (Goat Weed), Ricinus Communis (Castor Seeds) And Allum Stivum (Garlic) Aqueous Extracts On The Control Of Insect Pests Of Cowpea (Vigna Uniguiculata (L) Walp.) In Umudike, Abia State, South Eastern Nigeria " Repository.mouau.edu.ng (2021). Accessed 24 Apr. 2024. https://repository.mouau.edu.ng/work/view/field-evaluation-of-ageratum-conyzoides-goat-weed-ricinus-communis-castor-seeds-and-allum-stivum-garlic-aqueous-extracts-on-the-control-of-insect-pests-of-cowpea-vigna-uniguiculata-l-walp-in-umudike-abia-state-south-eastern-nigeria-7-2