EFFECT OF DIRECTIONS AND SOME ENVIRONMENTAL FACTORS ON DAMAGE AREA AND IT PERCENTAGE CAUSED BY THE INFESTATION OF LEAF MINER PHYLLONORYCTER PLATANI
Keywords:
environmental study, damage ratio, squamous wingsAbstract
According to the results, the north had the highest damage area rate, averaging 42.8 cm2, which was significantly different from the south's average of 28 cm2. The north also had the highest damage rate, averaging 26.13%, which was significantly different from the south's average of 17.17%. With an average of 10.71 larvae per leaf, the northern region had the highest average number of larvae, which was slightly different from the southern region's 8.81 larvae per leaf. Regarding the qualities under study, such as chlorophyll, the results indicated that the percentage of chlorophyll in the leaves decreased from the previous months in mid-October, with an average of 0.2694 mg/cm2. It was also observed that the number of larvae in the autumn was higher than in the summer, with the highest number of larvae per leaf being 13 in early October. The water content decreased from July and August in mid-September and early October, with percentages of 54.98% and 56.4%, respectively. According to the results, the leaf's thickness increased to 0.2835 in mid-July and reached its lowest point at 0.2158 at the start of October, when there were 15 larvae per leaf. according to the experiment's timing
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