A field experiment was conducted in Grdarasha research station which belongs to College of Agricultural Engineering Sciences-Erbil, Kurdistan region Iraq, in order to identify lace bug infestations in sunflower crops and investigate the type of damage by this insect then measuring population density, surveys, and determines their seasonal occurrence during the summer flowering stage of sunflower crops. The RCBD design was used for the field experiment. The result of this study showed the attacks the lace bug, Galeatus scrophicus on various parts of sunflower which belong to the insect family Tingidae and order Hemiptera were very observable. The results of ecological study revealed that the Chinese variety was the largest rate of lace bug samples at 36%, followed by the Aqmar variety with 25%. The Local variety contributed 24% of the total samples, while the Batoli variety was the smallest proportion at 15%. Based on the findings, lace bug was most abundant during the growing season, with the Chinese variety reaching its highest population density at (8.557 individuals/plant). At the same time, 36% of the plants in the field showed signs of lace bug infestation. According to the data obtained from the survey, the lace bug was found in 15 out of the 17 locations surveyed, while in the remained locations, there was no infestation recorded. The highest average infestation was recorded in Tandura, with (1,436) leaves affected per tree, whereas the lowest average infestation of (53) leaves per tree occurred in Daldaghan. No infestations were observed in Choman, Enne, and Qushtapa.
Hasan et al. (Tue,) studied this question.
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