![]() ![]() Leaves Spotted, Discolored May Mean Mites ![]() Be sure the soap spray contacts the aphids directly.Ĭlick here for more information on Dealing with Aphids. If they have infested a lot of the foliage, spray them with commercial insecticidal soap according to label instructions. If aphids are on plant tips, simply pinch them off and discard them in the trash. Sometimes ants are visible, crawling along plant stems and foliage, attracted by the presence of the sticky honeydew secreted by aphids as they feed. Often the leaves and blossoms become stunted. They suck juices from plant cells, causing foliage to curl, pucker and turn yellow. They tend to cluster on tender, new growth on zinnia stems and on the undersides of young leaves. See Starting Plants From Seed and see Seed Starting Supplies and Equipment.įoliage Curls, Puckers, Turns Yellow Due To AphidsĪphids are about the size of a pinhead and have soft, pear-shaped bodies. ![]() Dwarf varieties have naturally denser shapes. This causes them to branch and grow denser. To encourage thick, sturdy stems and compact plant shape, pinch the growing tips off of zinnia seedlings at least twice before the buds begin to form. If you are growing seedlings indoors under lights, adjust the fluorescent lights to remain only 3 or 4 inches above the seedlings as they grow taller. If they are at all shaded they are forced to stretch to reach the light, causing them to develop thin stems. Zinnias need many hours of bright, direct sun to flourish. Skinny, Spindly Seedlings Need More Light or Need Pinching ![]()
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