Biology of barley shoot fly Delia flavibasis Stein (Diptera: Anthomyiidae) on resistant and susceptible barley cultivars

The biology of barley shoot fly Delia flavibasis was studied using resistant (Dinsho and Harbu) and susceptible (Holker) barley cultivars at Sinana Agricultural Research Center, Ethiopia. A higher number of eggs was laid on Holker (17 eggs/female) than on Dinsho (11 eggs/female) or Harbu (12 eggs/female). However, there were no differences between cultivars in preoviposition and total reproductive periods. The shortest time required to complete larval, pupal and total developmental stages from egg to adult emergence occurred when the insect was reared on the cultivar Holker. Pupal weight, adult emergence and adult longevity did not differ between cultivars. The female to male sex ratio was 1:1. This study enabled us to understand the duration of each of the life stages of D.flavibasis, which will undoubtedly aid researchers and growers to design a sustainable management strategy against barley shoot fly

A review on the contribution of crop diversification to Sustainable Development Goal 1 “No poverty” in different world regions

I am grateful to Professor Maggie Gill and Dr Leslie Lipper for initial discussions, to Dr Leslie Lipper for arranging the meetings with the experts at the Food and Agriculture Organization (FAO) and to the experts at FAO for the valuable discussions on the topic. I would also like to thank Kirsten MacSween for revising the English. This research has been funded by the UK Natural Environment Research Council (NERC), NE/N005619/1.Peer reviewedPublisher PD

Predicting the Distribution of Chilo partellus (Swinhoe) and Its Parasitoid Cotesia flavipes Cameron in Ethiopia using Correlation, Step-wise Regression and Geographic Information Systems

The recent development of geographic information systems (GIS) provides new avenues for analysing spatial patterns in insect populations. Field survey data, along with GIS and statistical models were used to predict the distribution of Chilo partellus (Swinhoe) (Lepidoptera: Crambidae) and Cotesia flavipes Cameron (Hymenoptera: Braconidae) in Ethiopia. The results obtained suggested that the distributions of Ch. partellus and Co. flavipes were affected by rainfall and temperature. The predicted distributions of Ch. partellus and Co. flavipes were similar. Validation of predicted values is discussed. RÉSUMÉ Le récent développement du système d'information géographique (GIS) ouvre de nouvelles perspectives pour l'analyse de la distribution spatiale des populations d'insectes. Les données obtenues lors d'enquêtes de terrain, combinées à des modèles GIS et statistiques on été utilisées pour prédire la distribution de Chilo partellus (Swinhoe) (Lepidoptera: Crambidae) et de Cotesia flavipes Cameron (Hymenoptera: Braconidae) en Ethiopie. Les résultats obtenus suggèrent que la distribution de Ch. partellus et de Co. flavipes est influencée par la pluviométrie et la température. Les distributions prédites de Ch. partellus et de Co. flavipes sont similaires. La validation des valeurs prédites est discutée

Predicting the distribution of Chilo partellus (Swinhoe) and its Parasitoid Cotesia flavipes Cameron in Ethiopia using correlation, step-wise regression and geographic information systems

The recent development of geographic information systems (GIS) provides new avenues for analysing spatial patterns in insect populations. Field survey data, along with GIS and statistical models were used to predict the distribution of Chilo partellus (Swinhoe) (Lepidoptera: Crambidae) and Cotesia flavipes Cameron (Hymenoptera: Braconidae) in Ethiopia. The results obtained suggested that the distributions of Ch. partellus and Co. flavipes were affected by rainfall and temperature. The predicted distributions of Ch. partellus and Co. flavipes were similar. Validation of predicted values is discussed. RÉSUMÉ Le récent développement du système d'information géographique (GIS) ouvre de nouvelles perspectives pour l'analyse de la distribution spatiale des populations d'insectes. Les données obtenues lors d'enquêtes de terrain, combinées à des modèles GIS et statistiques on été utilisées pour prédire la distribution de Chilo partellus (Swinhoe) (Lepidoptera: Crambidae) et de Cotesia flavipes Cameron (Hymenoptera: Braconidae) en Ethiopie. Les résultats obtenus suggèrent que la distribution de Ch. partellus et de Co. flavipes est influencée par la pluviométrie et la température. Les distributions prédites de Ch. partellus et de Co. flavipes sont similaires. La validation des valeurs prédites est discutée