The first rule is to keep the plants healthy and vigorous. Wendy. Annual pruning may also be required to keep clematis plants looking their best. Johnavallance82. Heavy infestations can reduce the number and quality of blooms. Hi everyone, I appreciate any advice you can give me. Grow plants for a homemade aphid control. What can I put on clematis to rid of aphids? Their feeding may result in distorted growth. I thought HS would be a no-work kind of vine, but it’s just a big green mass (OK, but I would like the scent in my garden). I used an insecticide on it (I've used this on the rose bushes before), but now I'm wondering if that was a mistake. Pruning Care of Clematis. These sapsucking insects are common in late spring/early summer and populations can explode if weather conditions are right. The plant is growing on a long support with wisteria at the other end. on Apr 23, 2018. Aphids may feed on new growth early in the season. Asked April 28, 2015, 12:03 AM EDT. Spray the plant every day until the plant is aphid free. Compare clematis with roses for example and it quickly becomes clear that pound for pound, clematis come out winners every time! Plants such as the following are attractive to aphids and good for organic aphid control. Garlic oil spray can kill aphids and other soft bodied pests. This plant is growing on a communal roof-top garden in Portland. on Apr 22, 2018. It also rinses off some of the honeydew. Answered. I've nipped out a few ends to help it bush out and it's looking good but all the new growth has a thick covering of black aphids being carefully tended by ants. A strong spray of water from a hose will knock many of the aphids off the plant, and they won’t be able to return. Helpful. Aphids on Clematis armandii. The two species are easy to tell apart from their antennae, with Myzus varians having conspicuously banded antennae and Aphis vitalbae having only antennal segment VI darkened. It has not been pruned this year after flowering, and the aphids are very thick on all the leaves. Aphids Various greenfly and blackfly attack clematis, especially during spring and early summer. A clematis growing on the same wall is a mass of bloom every year. Q: I just realized that the new growth on my evergreen clematis is looking really bad. Clematis are remarkably free from pests and diseases. Aphids and spider mites can be a problem as well. Mix 1 tablespoon of Castile soap to 1 gallon of water, spray. Aphids have attacked and I’m at a loss of what to do. This was the peach-clematis aphid (Myzus varians, see picture below). Answer. A: Wow, that is a lot of aphids! Clematis wilt can attack any type of clematis. Maarigard / Getty Images Plants Susceptible to Clematis Wilt . Clematis wilt can cause vines to suddenly collapse and die after their foliage and stems have blackened. Mites cause a fading of green leaf color, which makes the leaves look dusty or yellowed. Reply. I have 5 goldflame honeysuckle plants growing in our backyard in NJ. Please see Table 1 for fungicides labeled for powdery mildew control on clematis. I have a young clematis, only in the ground since last autumn and has just about reached 6' high. Yesterday I found little tiny black aphid-looking bugs on one of my clematis plants. Powdery mildew often affects plants with poor air circulation. A dusting of diatomaceous earth is lethal to aphids. 3 answers . Reply. Heavy infestations at the shoot tips can stunt growth and soil foliage with a …