 ... trees to a depth of 1 to 4 inches. This will destroy the caterpillars in their earthen cells. Cultivation reduces the number of adult moths that will emerge and lay eggs in subsequent generations. Leafhoppers Description. —Adults: Many colorsgreen,...  Insects on Trees and Shrubs Around the Home - الصفحة 18بواسطة Paul Henry Schwartz, United States. Agricultural Research Service - 1975 - عدد الصفحات: 51عرض كامل - لمحة عن هذا الكتاب
 | United States. Department of Agriculture - 1977 - عدد الصفحات: 36
...Leafhoppers Description. —Adults: Many colorsgreen, brown, yellow or striped; wedge-shaped; up to 1/8 inch long; fly quickly when disturbed. Nymphs: Similar...Distribution. —Continental United States. What to do.— Young trees are the most seriously infested by leafhoppers. The insects usually attack the undersides... | |
 | 1950
...Leafhoppers Description. — Adults: Green; wedge-shaped; up to ys inch long; fly quickly when disturbed. Damage. — Cause leaves to curl, or roll downward,...to do. — Apply malathion when leafhoppers appear. Leaf rollers Description. — Adults: Brown moths; light markings on wings; wingspan % inch or more.... | |
 | Paul Henry Schwartz - 1977 - عدد الصفحات: 36
...Leafhoppers Description.- Adults: Many colorsgreen, brown, yellow or striped; wedge-shaped; up to 1/8 inch long; fly quickly when disturbed. Nymphs: Similar...Distribution. -Continental United States. What to do.- Young trees are the most seriously infested by leafhoppers. The insects usually attack the undersides... | |
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