Population fluctuations of the Dacus ciliatus (Diptera: Tephritidae) on cucumber
Paper ID : 1169-3IICE (R1)
Authors:
masoume paydar *1, nasser Moeeny-Naghdeh2, Farzad Jalilian3, Abbas Ali Zamani4
1Department of Plant Protection, College of Agriculture and Natural. Resources, University of Razi, Kermanshah,Iran.
2Department of Plant Protection, College of Agriculture and Natural Resources, Razi University, Kermanshah, Iran
3Academic member of Kermanshah Agricultural and Natural Resources Research and Education Center.
4Department of Plant Protection, College of Agriculture and Natural Resources, Razi University, Kermanshah , Iran
Abstract:
The cucurbit crops are important vegetables, though they vary in economic importance in Iran. They are annual plants and are warmth-loving crops. Several pests and diseases reduce the yield of these warm-season products. Dacus ciliatus Loew (Diptera: Tephritidae) one of the most important pests in cucurbitaceae family, Which by feeding on fruits, makes them corrupt and unusable. Population dynamics and spatial distribution of this pest was studied in Kermanshah countryside in summer until fall 2018. Population fluctuations and spatial distribution of adults were investigated in the cucumber field by Using Mcphail traps baited with sugar beet molasses and Hydrolyzed protein (3%), and weekly hunting trends in different treatments and sampling date was drawn. The traps, which were installed on 9th July were checked weekly, target insects were counted and Iwao Index and Taylor Power law were applied to evaluate spatial distribution of the adult stage. Data variances were analyzed by using SAS and a comparison was made on the averages by LSD Test (1%). Results revealed that the adult population fluctuations did not follow the same pattern in different treatments and dates of sampling. The highest and lowest population was observed in October and July, respectively and mean number of flies was 36.3 and 0.5 adult per trap in week. Both sexes were active in the field and the sex ratio was about 63% female and 37% male. The spatial distribution of adults showed that both index are well, but Iwao index gave a better fitness result. Based on the results of this study, the distribution pattern of D. ciliatus is a cumulative and these results can be used in integrated management of this pest.
Keywords:
Dacus ciliatus, Male, Females, Cucurbitaceous crops, population fluctuations, Iwao and Taylor Index
Status : Paper Accepted (Poster Presentation)