Insect pest of cowpea pdf
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Review Article Management of Cowpea Insect Pests

for the management of insect pests of cowpea *1 R.O. Oyewale, 2 L.J. Bamaiyi, 2 A.M. Oparaeke, 2 R.S. Adamu 1 Department of Crop Production Federal University of Technology Minna, Niger State.
The presence of many insect pest species from seedling to harvest is a feature of cowpea production system. However, flower and pod attacking pests are the most important arthropod pest of cowpea [17;
IJAAR 6 (2018) 85-92 ISSN 2053-1265 Frequency of application of four plant extracts in the control of major insect pests of cowpea, Vigna
This Aphid is a major economic pest of cowpea. The aphid while feeding removes sap from the leaves, pods, seeds and other aerial plant parts causing damage to the plant resulting in yield reductions. The aphid while feeding removes sap from the leaves, pods, seeds and other aerial plant parts causing damage to the plant resulting in yield reductions.
An Open Access Journal published by ICRISAT SAT eJournal ⏐ ejournal.icrisat.org – 1 – December 2010 ⏐ Volume 8 Survey of insect pests on pigeonpea in Nigeria


PRODUCTIVITY OF GRAIN COWPEA (Vigna unguiculata (L.) Walp

Read “Insect Pests of Cowpeas, Annual Review of Entomology” on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. of pest-resistant varieties and the greater availability of (often subsidized) in­ secticides (95, 172).
In West Africa, the flower bud thrips, M. sjostedti is the most economically important insect pest of cowpea causing yield losses between 20 to 70% depending on the severity of infestation [19].
control of pests of cowpea will be – a mixture of the use of biological control agents, cultural practices, bio-pesticides, and classic host plant resistance. When deciding which pest control approach can have the greatest impact for any given insect
considered as sucking insect pests. The population of aphids was more abundant on the crop during June and July 2011. Results revealed that maximum activity was recorded during July and the correlation studies were made between the incidence of major sucking insect pests and select weather parameters. Aphids showed positive correlation with rainfall (r = 0.261) and negative correlation with
A GENOMIC ANALYSIS OF THE INSECT PEST POPULATIONS OF COWPEA IN WEST AFRICA BY TOLULOPE ADEBIMPE AGUNBIADE DISSERTATION Submitted in partial fulfillment of the
the effectiveness of insect pest management technology in improving Cowpea productivity in the study area is accepted. The major problems that affected the effectiveness and adoption of insect pest …
Am. J. Sci. Ind. Res., 2011, 2(4): 592-602 594 Table 2. Scale for rating flower bud thrips infestation on cowpea Rating Appearance 1 no browning/drying (i.e scaling) …
insect pest control, this study was aimed at evaluating the efficacy of J. curcas extracts in the control of some field insect pests of cowpea ( V. unguiculata ).


Published by Canadian Center of Science and Education (insect pests of cowpea (cowpea (Vigna unguiculata
Cowpea aphid can cause damage as a vector of virus diseases in winter pulses in southern Australia. Cowpea aphids may contribute to poor productivity of medic pastures in dry years. Cowpea aphids may contribute to poor productivity of medic pastures in dry years.
insect pests of ccwpeas vigna unguiculata (l.) walp. and studies on cowpea yield assessment under different chemical spray regimes and minimum use of insecticides


Control of Callosobruchus maculatus (F.) [Coleoptera: Bruchidae] Using …. 102 media for the insects were obtained from Katsina Central Market, Katsina State, Nigeria.
in the Control of Insect Pest of Cowpea, Callosobruchus maculatus Olotuah, O. F. Department of Plant Science and Biotechnology, Adekunle Ajasin University, P.M.B.001, Akungba-Akoko, Ondo State, Nigeria Email: lanrose2002@yahoo.com Abstract – The use of powdery extract of Hyptis suaveolens in the control of storage pest of cowpea Callosobruchus maculatus was studied. The experiment was
¢ Smaller than other major stored grain pests (2mm long), Bruchids: Cowpea weevils (Callosobruchus species) PHOTO: CSIRO SCALE IN 4 mm 6 5 3 2 1 0. 10 SCALE IN 4 mm 6 5 3 2 1 0 Pea Weevil Both a field pest and storage pest (appears in storage after emergence). In WA it is a major pest of field peas. KEY FEATURES: ¢ Adult globular body length (4 – 5mm long) with long legs and …
Dzemo et al., (2010) reported that insect pest control insecticide sprays led to increased number of cowpea pods per plant, pod weight, number of seeds per pod,
SUMMARY: The pod-sucking bugs are a group of major pests of cowpea in sub-Saharan Africa. They are difficult to control due to their mobility: a single control strategy is unlikely to succeed.
Abstract. Aphid (Aphis craccivora Koch) is a major insect pest of cowpea [Vigna unguiculata (L.) Walp.] particularly in Africa and Asia, causing direct damage by removal of plant sap and indirect damage by transmitting mosaic viruses.
INSECT PESTS OF COWPEAS VIGNA UNGUICULATA (L.) WALP. AND STUDIES ON COWPEA YIELD ASSESSMENT UNDER DIFFERENT CHEMICAL SPRAY REGIMES AND MINIMUM USE OF INSECTICIDES AGAINST THE DOMINANT INSECT PEST SPECIES AT KATUMANI DRYLAND RESEARCH STATION, KENYA By FLORENCE R.A. MABONGA A thesis submitted in partial …
Insects 2015, 6 78 1. Introduction Cowpea, (Vigna unguiculata (L) Walpers, Fabaceae), is an important edible legume crop in many parts of the world especially in tropical and subtropical regions.

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Integrating planting date with insecticide spraying

global warming on cowpea production in the country and also provide effective control of the identified pest in order to maintain or stall resurgence. Keywords : Climate change, insect pest, cowpea, pest …
8/23/2017 1 Feed the Future Innovation Lab for Collaborative Research on Grain Legumes Science-driven pest management saves cowpea farms from insect pests
Benefits provided by cowpea EXCELLENT as a cover crop to suppress weeds, provide erosion control, and attract beneficial insects VERY GOOD for weed suppression by quick growth
ii productivity of grain cowpea (vigna unguiculata (l.) walp.) as influenced by season, genotype, insect pest management and cropping system in southeastern nigeria
Insect infestation is a major constraint to the production of cowpea, sometimes causing losses of over 90% loss in yield. The legume pod borer Maruca vitrata is the main pre-harvest pest of the cowpea and the cowpea weevil Callosobruchus maculatus the main post-harvest pest.
Progress and future prospects in utilisation of host plant resistance in the control of insect pests of cowpea, Vigna unguiculata in Africa. International Journal of Tropical Insect Science , …
One major constraint to the increased and sustainable production of cowpea is the damage caused by field insect pests, particularly, during the flowering and post-flowering growth stages ( Singh
Physic nut (Jatropha curcas) oil as a protectant against field insect pests of cowpea in Sudano-Sahelian cropping systems HI Katoune 1,2 , D Malam Lafia 1,2 , H Salha 1 , A Doumma 2 , A Yaye Drame , D Pasternak 1,3 and A Ratnadass 1,4 *
The biggest constraint to increasing cowpea seed yield in Africa is the insect pest complex (Booker, 1965, Singh and van Emden, 1979, Singh and Allen, 1980, Muleba and Ezumah, 1985, Jackai and Daoust, 1986, IITA, 1992).
Int.J.Curr.Microbiol.App.Sci (2017) 6(8): 1777-1784 1778 feeding stimuli for insects. Occurrence at lower concentration or total absence of such

Evaluation Of Jatropha Curcas Lam. Extracts In The Control

oils in the control of insect pest of cowpea. MATERIALS AND METHODS This experiment was carried out at the Department of Plant Science and Biotechnology, Adekunle Ajasin University, Akungba-Akoko. The insect pest, Callosobruchus maculatus used was obtained from a culture of infected cowpea seeds maintained at ambient condition in the Department of Plant Science and Biotechnology Laboratory
insect and/or the damage or symptom in each pest entry. Once you have identified the pest, Once you have identified the pest, look into the corresponding control …
Objective of study ~ 1197 ~ Journal of Entomology and Zoology Studies Materials and Methods Population dynamics of major insect pests of cowpea and

Comparative use of botanical oil extracts in pest


Insect Pests of Cowpeas Annual Review of Entomology

Insect Pests of Grain Legumes S R Singh, and and H F V Emden Annual Review of Entomology Insect Pests of Beans in Africa: Their Ecology and Management
on cowpea production in West Africa – pest insects in the field. Cowpeas crops in West Africa can be Cowpeas crops in West Africa can be attacked by upwards of six major field pest insects (described in the next section).
Insect pest damage to leaves of cowpea (Vigna unguiculata L. Walp): comparative effects of aqueous www.iosrjournals.org 18 Page
PDF Insect pests are perhaps the most important constraint to cowpea (Vigna unguiculata L. Walp) production. In Uganda, aphids, thrips, pod sucking bugs and pod borers are ubiquitous and very
insect pests of cowpea, in order to reduce the levels of pesticides used on cowpea crops. Several major strategies have been adopted in the developed world to reduce the use of neurotoxic pesticide sprays in the field and on the stored seeds.
31/12/2014 · Cowpea production is affected by insect pests and disease infestations which lead to economic losses. Insect damage is the major constraint to cowpea grain production in most cowpea producing nations [ 5 ].

IPM Proves Most Effective in Controlling Insect Pests of


Pod-sucking bugs of cowpea Home Cabi ASHC

Cowpea bruchids are major pest of cowpeas, pigeon peas, soybean, green gram and lentils. Symptoms In the early stages of attack the only symptom s are the presence of …
Insect pest incidence, abundance, damage and grain yield of four cowpea pests: aphids, Aphis craccivora Koch, bean flower thrips, Megalurothrips sjostedti (Trybom), legume pod borer, Maruca vitrata (Fabricius) and the pod-sucking bug (PSB) complex were measured across a range of plant spacing using two cowpea varieties, a breeding line (IT86D
Cowpea, Vigna unguiculata (Walp) and beans, Phaseolus vulgaris are attacked by several insect pests worldwide. The pests include economically important borers, the control of which often requires the use of more than one tactic.
once each at flowering and podding, in terms of reducing insect pest population and increasing grain yield. Despite Despite the reduction in insect infestation, delaying planting beyond mid-August reduced cowpea grain yield by 12.3%, on
These findings have generated interest in a neem‐based pest management system for cowpeas and possibly other crops. Control of some insect pests of cowpea (Vigna unguiculuta) with neem (Azadirachta indica A Juss.) in Northern Ghana: Tropical Pest Management: Vol 37, No 3
6 Evaluation and Utilization of Cowpea (Vigna unguiculata (L.) Walp.) Germplasm for Varietal Improvement of Resistance to Cowpea Aphid (Aphis craccivora Koch.) in Thailand
incidence of insect-pests and diseases during the Kharif seasons of 2011 and 2012. Management of cowpea pests : An experiment was conducted under protected and unprotected conditions during kharif seasons of 2011-12 to study the relationship of incidence …
by many factors including insect pests and diseases. The insect pests are of major concern causing considerable economic losses. One such pest is the legume pod borer (Maruca vitrata) (Lepidoptera), also known as the Maruca Pod Borer (MPB), which is responsible for yield losses of up to 50 % in the field. Although breeding for host plant resistance is currently the main way of controlling the
The cowpea aphid is a widespread and relatively common pest of legume crops throughout Australia. They have a wide range of host plants and can tolerate warm, dry weather conditions that cause many other aphid species to suffer.
Download cowpea pests and diseases or read online here in PDF or EPUB. Please click button to get cowpea pests and diseases book now. All books are in clear copy here, and all …

POPULATION DYNAMICS OF MAJOR INSECT-PESTS OF COWPEA

Effect of Herbicides, seed dressing chemicals and spray regimes on germination, insect infestation and yield of Cowpea ( Vigna unguiculata (L) Walp) * 1 Tekwa IJ, 2 Ijabula ST and 1 Maijama’aNP
Population Dynamics of Major Insect-pests of Cowpea 621 in flowers and pods was estimated by counting number of larvae on 10 flower buds and pods separately from
Australian Journal of Basic and Applied Sciences, 5(2): 82-89, 2011 ISSN 1991-8178 Persistence of New Insecticides and Their Efficacy Against Insect Pests of Cowpea
chemicals were applied to control four major insect pests of cowpea and influence on yield. Insect pests studied were the cowpea aphid, Aphis craccivora Koch, legume bud thrips Megalurothrips sjostedti Tryb, legume pod borer, Maruca vitrata Fab. and pod sucking bugs.
Introduction . This booklet is intended as a guide to the field recognition of cowpea pests and diseases for use both by agricultural research and exten­
of this devastating insect pest of groundnut and cowpea in the north eastern part of Nigeria. However, the However, the integration of two or more of these methods as depicted by the integrated pest management control method is a
HIND AGRICULTURAL RESEARCH AND TRAINING INSTITUTE INTRODUCTION Cowpea [Vigna ungiculata (L.) Walp.] belonging to family leguminaceae is one of the principle pulse crops of the


Biotechnological Approaches for the Control of Insect Pests in Crop Plants 271 Transgene Source and Mode of Action Example of use Biotin binding
Cowpea is a hardy crop but it hosts many insect pests that attack vegetables. These include; leaf miners, whiteflies ( Bemisia tabaci ), leafhoppers ( Empoasca sp .), mites
PDF Indiscriminate use of synthetic insecticides for insect pest management has resulted in many harmful effects like, insect resistance, effects on the beneficial organisms etc. There is a need
insect pests of cowpea, provides a non-exhaustive list of cowpea lines that were identified from past and recent studies as insect-resistant and gives an over-
IPM Proves Most Effective in Controlling Insect Pests of Cowpea in Africa International Pesticide Benefits Case Study No. 99, December 2013 Leonard Gianessi
COWPEA: Post-Harvest Operations Organisation: pests – can destroy a granary full of cowpea in two or three months. (A BIOTECH, 2002) 1. Introduction Cowpea is one of the most ancient crops known to man. Its origin and domestication occurred in Africa near Ethiopia and subsequently was developed mainly in the farms of the African Savannah. (Duke, cited by UC SAREP). Nowadays it is a legume
Pest reductions on cowpea in these systems have been reported (Mortimore et al., 1997). More recently it has been shown that allelochemicals, released by heterogeneous elements within a crop, can have a significant impact on both pests and their natural enemies within a crop ( Khan et al., 1997 ).


Field bioefficacy of plant extracts for the control of post flowering insect pests of cowpea (Vigna unguiculata (L.) Walp.) in Nigeria Ahmed, B.I. 1*, Onu, I. and Mudi, L.
Insect pests pose the greatest threat to cowpea production. The crop is severely attacked at every stage of its growth by insects. High pest densities occur at many locations with complete loss of grain yield if no control measures are taken [1]. Farmers can improve yield 10-fold if insecticides are used [2]. The most damaging insect pests are aphids, flower thrips, the Maruca pod borer and
Similarly, in the unprotected cowpea, monocrop yield was reduced by 94% and intercrop yield was reduced by 51%. Thus, there are yield advantages under conditions where intercropping reduces insect pest density. Intercropping can form a component of an integrated pest management programme.

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Insects cropgenebank.sgrp.cgiar.org

Studies on the control of major insect pests and yield of

Seasonal Incidence and Relation to Weather Parameters of


Effects of variety and insecticide spray application on

Control of some insect pests of cowpea (Vigna unguiculuta

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