International Journal of Agronomy, Volume 2025, Issue 1, 2025.Cowpea aphids remain a major production constraint affecting productivity on smallholder farms in Uganda. This study aimed to identify cowpea genotypes with resistance to aphid biotypes in Uganda for developing improved cowpea varieties. Forty‐eight cowpea genotypes were initially screened using aphids collected at Makerere University Agricultural ...
Selma Ndapewa Nghituwamhata +8 more
wiley +1 more source
International Journal of Agronomy, Volume 2025, Issue 1, 2025.Host plant resistance offers the cheapest, most sustainable and environmentally safe way to mitigate losses caused by the cowpea weevil, Callosobruchus maculatus (Fab.1775), in stored cowpea grains. This study aimed to identify cowpea cultivars that show resistance to infestation by C.
Francis Kusi +9 more
wiley +1 more source
Conceptos basicos de entomologia y manejo de plagas [PDF]
, 2017 The natural factors affecting insect pest mortality are described as an important aspect in the regulation of populations. Through graphs of population density vs. time, the position of equilibrium of an insect population, the economic threshold, and the
Zuniga, T
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Antixenosis as a mechanism of cocoa resistance to the cocoa mirid, Sahlbergella singularis (Hemiptera: Miridae) [PDF]
, 2010 Objectif: L'étude vise à confirmer la résistance à Sahlbergella singularis de quelques génotypes prometteurs de cacaoyers et à vérifier le rôle de l'antixénose dans le mécanisme de résistance.
Eskes, Albertus +2 more
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Assessment of the effect of cocoa mosquito mirid true bug, Helopeltis sp. (Hemiptera: Miridae) on the cocoa (Theobroma cacao L.) production in Cameroon (Central Africa) [PDF]
, 2018 The impact of mirid true bugs on cocoa production is widely assessed for Sahlbergella singularis and Distantiella theobroma species in the cocoa growing area in Africa.
Babin, Régis +9 more
core +2 more sources
Frontiers in AgronomyCacao (Theobroma cacao L.) is a tropical crop in high global demand. Ecuador is a significant producer and exporter of cacao where, there are several fine aroma cacao cultivars (type Nacional) and CCN51 (Trinitarian origin) in which the damages caused by
Dorys T. Chirinos +6 more
doaj +1 more source
Foliar application of microdoses of sucrose to reduce codling moth Cydia pomonella L. (Lepidoptera: Tortricidae) damage to apple trees [PDF]
, 2016 BACKGROUND The effects of foliar applications of microdoses of sucrose to reduce the damage by the codling moth have been reported from nine trials carried in France and Algeria from 2009 to 2014.
Abbott +70 more
core +2 more sources
Defensive response of commercial varieties of Prunus persica L. to the attack of Myzus persicae (Sulzer) APHID [PDF]
, 2012 161 p.Durazneros y nectarines son uno de los frutales más importantes en el mundo, los cuales son atacados por el áfido M. persicae causando daños directos e indirectos.
Francis, Frederic (Prof. Guía) +2 more
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Cogent Food & Agriculture, 2017 Yams (Dioscorea spp.) are one of the food crops that contribute to food security and poverty alleviation in Benin and, like several other products, the post-harvest phase is threatened by the rotting of fresh tubers.
Laura Estelle Yêyinou Loko +5 more
doaj +1 more source
Characterization of Resistance, Evaluation of the Attractiveness of Plant Odors, and Effect of Leaf Color on Different Onion Cultivars to Onion Thrips (Thysanoptera: Thripidae) [PDF]
, 2017 Onion thrips, Thrips tabaci Lindeman (Thysanoptera: Thripidae), is a worldwide pest of onion, Allium cepa L. In field studies on onion resistance conducted in 2007 and 2008 using 49 cultivars, 11 showed low leaf damage by T. tabaci. In laboratory studies,
Deutschlander, Mark +4 more
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