Open AccessEstimation of Population Density and Percentage of Infection with Two Species of Aphids in Wheat Fields in Muthanna Desert For The Season 2020-2021
Author(s) -
Meeri Kadhim Mubasher Al-Fatlawi,
Alaa Hussein Al Hamadani,
Ali A. Kareem,
Maysaa A. Alhar
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/923/1/012016
Subject(s) - population density , biology , population , hemiptera , veterinary medicine , rhopalosiphum padi , aphididae , infection rate , agronomy , horticulture , zoology , toxicology , botany , pest analysis , homoptera , medicine , surgery , environmental health
The field study included estimating the population density of two species of aphids belonging to Hemiptera: Aphididae, which infect the wheat crop in the Samawah desert in Muthanna Governorate and included the areas of Al-Salhoubi, Al-Sheikhiya, Al-Rehab, Al-Shawiya, Al-Radmiah and Al-Salman. The study showed the presence of two species, Rhopalosiphium padi L. and Schizaphis graminium . The results of the field survey of the species R. padi showed that the highest infection rate and number density reached 87.53 insects/leaf during March in the Al-Rehab area and 49.88 insects/leaves during the same month in the Al-Shawiya area, respectively, while the infection rate and the number density of the same species decreased to 19.80% during January in Al-Salman and 17.75 insects/leaves during the same month in Al-Shikiya, respectively. However, S. graminium , found at the highest rate of infection at 49.33% in the Al-Salman area during March, and it decreased to 21% during January, and the highest rate of population density of the same species was 39.22 insects/leaf in Al-Shawiya during March, and the lowest rate was 8.45 insects/leaf in the Salhoubiyeh area during January. It was noted that the highest rate of infection with R. padi during January and February reached 42 and 59.24%, respectively, in the Al-Rehab area, and the highest rate of population density was recorded during January and February in the Al-Salman area, which reached 25.37 and 39.12 insects/leaf, respectively.