Abstract
This study was conducted in a field located at Department of Biology/College of Sciences/University of Baghdad, from the period between the Mid of August to the second half of October 2015, in order to study the population density of cowpea leaf miner on California Ramshorn cowpea and local varieties (Bayader) and their natural enemies. The result showed fluctuation of the population density for Liriomyza trifolii on the American variety. Two peaks for population density were shown and the second was higher than the first. The highest population density was 6.5 leaf miner/ leaf while the lowest was 0.7 leaf miner/leaf at the beginning of sampling. For the local variety, three peaks were recorded. The first was the highest with 2.61leaf miner/leaf and the lowest was 0.2 leaf miner/leaf. Population density of insect was higher on American variety has higherthan the local variety in its protein content which reached to 24.3%. Two hymenopteran parasites Pediobius matallicus and Diglyphus isaaea belong to the family Eulophidae were recorded on L. trifolii. This study, the first was conducted on the leaf miner on this host plant.
Highlights
The Response of Leaf Miner Liriomyza trifolii to Cowpea Vigna spp Plant Vigna spp الى نبات اللوبياLiriomyza trifolii استجابة حفار الاوراق
Cowpeas are attacked by many pests including aphids, legume worm, bean beetle and cowpea leaf miner Liriomyza trifolii
Leaf miner (Liriomyza trifolii) is a phytophagous fly feeding on various vegetable and ornament plants worldwide [3], those grown in protected culture
Summary
The Response of Leaf Miner Liriomyza trifolii to Cowpea Vigna spp Plant Vigna spp الى نبات اللوبياLiriomyza trifolii استجابة حفار الاوراق. متطفل, بروتين, اللوبيا, Liriomyza trifolii :الكلمات الدالة Introduction Cowpea Vigna spp is one of economically important leguminous crop in Iraq and worldwide. It is grown for its edible parts, the green pod and dry seeds, as a pasture plant and to improve soil [1]. Small and oval-shaped, when hatched; larvae immerged and start to feed. They make snake-like tunnels; appear obviously, 3-4 days after oviposition. Natural enemies include parasites feed on adults or larvae in infested leaves as there are over 14 parasite species. This study aimed to study the population density of cowpea leaf miner and their natural enemies
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