A seasonal study of the parasite (Haliday) Aphidius matricariae and two insects of green peach myzus persicae and black fabae aphis and the effect of climate factors on them in Ninawa Governorate

Abstract

The results shown by the study that aphids were present in varying numbers Fadiliyah area fields and the Faculty of Agriculture and Forestry / University of Mosul fields. On Vegetable plants and trees with a stone core and this variation is caused by reciprocal factors of weather conditions and factors biome , including the insect green peach aphids and Black aphids peas as the numbers of insect reached green aphids peach 60 insect / 50 leaf and so On 06/14/2012 at temperature 33 , 7 and 30% moisture ,the proportion of parasitism The intruder Aphidius matricariae was75%, while insect of black peas aphids to appear in small numbers at the beginning of the month of July and the number of insect 14 /50 and the leaf ,temperature at 38.3 and 39.5 , the rate of moisture ,intrusion was zero % ,The numbers of the pest continued to fluctuate as well as the proportion of parasitism to when I got to the first peak as the numbers of insect reached green peach aphids 384 insect / 50 paper in mid November at a temperature of 24 c and relative humidity of 82% also rose with the numbers of the pest rate of parasitism reached at the height of the first lesion 52 % .The insect Black peas aphids reached the first peak at the beginning of the month of December as the number of insect amounted to 744 insect / 50 paper plant, as the rate of temperature 18 C and the average humidity 67% and 90% intrusion. After that usually the number of insect and spam swing another ball and went to the second peak for each of the insect green peach aphids and Black peas aphids the lion at the beginning of the month of April, reaching numbers 938 and 896 in both aphid insect / 50 leaf each of them respectively, while the temperature was 28 C,The average relative humidity was 29% ratio for an intruder snooping Aphidius matricariae stood at 86.43 and 75.10 for each of the Both aphids respectively, then usually the numbers to go down again and usually swing aga