Pests Causing YellowHostaLeaves. Foliar nematodes are microscopic worms that live inside the leaves. Symptoms, which are usually first noticed in early summer, begin as a yellow discoloration that later turn into brown streaks between the leaf veins. HostaLeavesTurningYellow? Here’s 10 Common Reasons Why. Is your hosta's leavesturningyellow? Unfortunately, this is an all-too-common problem for many owners of these spectacular plants. The good news is there's a few common reasons it happens. Typically, you’ll see leavesturningyellow and brown at the tip first before progressing down the entire leaf. It also causes stunted growth. A close up horizontal image of the symptoms of Fusarium root rot on the leaves of a hosta plant. Discover Pinterest’s best ideas and inspiration for Hostaleavesturningyellow. Get inspired and try out new things. 15 people searched this.Hosta care, Shade garden plants, Hostas. How To Treat HostaLeaf Spots. Transplanting Hostas In The Fall. How To Prepare Hostas For Winter. These mollusks love hostaleaves. Since slugs are nocturnal and hide during the day, gardeners may not see the slugs themselves but only the evidence of their feeding. Look for smooth but irregular holes along leaf edges or between veins. Sometimes, entire leaves are sheared off at the stem. Hostas ( Hosta spp.) are among the most highly prized foliage plants, with big, beautiful leaves in glowing shades of green, blue, gold, and ivory. So if you come out to find those same leavesturning brown and yellow, it is time to review the cultural care you are giving them. Look for leaves around the outside of your hosta that change color to yellow or brown, and wilting foliage at the plant's center. The base of the foliage also turns dark brown and feels so squishy, that you can lift individual leaves right off the plant. But when the green foliage starts turningyellow, be sure that your plant is telling you something. You, the gardener, need to listen and interpret the signals. So, if you ask us why your Hostaleavesturningyellow, we will be glad to explain it. Hostaleaves will turnyellow and droop when they’re watered too often.Aphids are small, green insects that mostly affect the leaves and flower buds. Heavy aphid infestations that are left untreated can damage hostaleaves, causing them to become deformed, wilted and turnyellow. RMKXX127–Hostaleavesturn golden yellow in autumn in UK already starting to decay. Hostaleaves can turnyellow due to inadequate watering, excessive exposure to the sun, over-fertilizing, bacterial, viral, or fungal diseases, and foliar nematodes that can settle in the tissue of hostaleaves! Leaves will turnyellow in color. Action: Remove and dispose of infected plants. Thoroughly clean any tools that came in contact with the plant as well as your hands and gloves. HOSTA VIRUS X. The leaves emerge blue-green in spring with wide yellow margins, but in the summer the leavesturn dark green and the margins become creamy white. In early summer, this hosta flowers with pale purple blooms atop its large mound of foliage. hostas turningyellow after transplant. Hostaleavesturnedyellow after transplanting. Replanting is quite a challenge for the hosta. This is especially true if the replanting has not been done properly. As a result, the hosta may lose some of its leaves.