ScholarLens Back to search
1980•University of Nairobi Research Archive (University of Nairobi)Requires access

Insect podborer infestations and their influence on developing pods and final seed yields by pigeonpea (Cajanus cajan) in Kenya.

J. B. Okeyo-Owour, Canute P. M. Khamala

Open publisher page 2 citations

Abstract

In Kenya, 8 species of insects were found to be common borers into the developing pods of pigeon pea (Cajanus cajan), feeding on the developing seeds and reducing seed yield. They were Heliothis armigera (Hb.), Maruca testulalis (Geyer), Pardasena virgulana (Mab.), Exelastis atomosa (Wlsm.), Lampides boeticus (L.), Euchrysops cnejus (F.) (Catochrysops cnejus), Melanagromyza obtusa (Mall.) and Etiella zinckenella (Treitschke). Of these, H. armigera, P. virgulana and M. obtusa were the most important. Seed yield losses due to insect podborers ranged from 25.7 to 62.7%.ADDITIONAL ABSTRACT:In trials in the 1976 long rains at Kabete and Katumani, pigeon pea seed yield losses due to insect pod borers (mainly Heliothis armigera, Pardasena virgulana and Melanagromyza obtusa) ranged from 25.7 to 62.7%

About this research paper

What this paper is about

In Kenya, 8 species of insects were found to be common borers into the developing pods of pigeon pea (Cajanus cajan), feeding on the developing seeds and reducing seed yield. They were Heliothis armigera (Hb.), Maruca testulalis (Geyer), Pardasena virgulana (Mab.), Exelastis atomosa (Wlsm.), Lampides boeticus (L.), Euchrysops cnejus (F.) (Catochrysops cnejus), Melanagromyza obtusa (Mall.) and Etiella zinckenella (Treitschke). Of these, H. armigera, P. virgulana and M. obtusa were the most important. Seed yield losses due to insect podborers ranged from 25.7 to 62.7%.ADDITIONAL ABSTRACT:In trials in the 1976 long rains at Kabete and Katumani, pigeon pea seed yield losses due to insect pod borers (mainly Heliothis armigera, Pardasena virgulana and Melanagromyza obtusa) ranged from 25.7 to 62.7%

Why it matters

OpenAlex reports 2 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

In Kenya, 8 species of insects were found to be common borers into the developing pods of pigeon pea (Cajanus cajan), feeding on the developing seeds and reducing seed yield. They were Heliothis armigera (Hb.), Maruca testulalis (Geyer), Pardasena virgulana (Mab.), Exelastis atomosa (Wlsm.), Lampides boeticus (L.), Euchrysops cnejus (F.) (Catochrysops cnejus), Melanagromyza obtusa (Mall.) and Etiella zinckenella (Treitschke). Of these, H. armigera, P. virgulana and M. obtusa were the most important. Seed yield losses due to insect podborers ranged from 25.7 to 62.7%.ADDITIONAL ABSTRACT:In trials in the 1976 long rains at Kabete and Katumani, pigeon pea seed yield losses due to insect pod borers (mainly Heliothis armigera, Pardasena virgulana and Melanagromyza obtusa) ranged from 25.7 to 62.7%

Key concepts: Cajanus, Agronomy, Biology, Toxicology

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
Insect podborer infestations and their influence on developing pods and final seed yields by pigeonpea (Cajanus cajan) in Kenya. — Research Paper | ScholarLens