Avatar for Flowerpower16
Jun 3, 2020 9:58 AM CST
Sudbury Suffolk
Hi. I have a sticky substance on my Rhododendron, Acer and now starting on a Clematis, it's a bit like i have on Petunias in late summer. What do you think it is and how do i control it please.
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Jun 3, 2020 3:06 PM CST
Name: sumire
Reno, Nevada (Zone 6a)
Welcome!
The sticky is most likely caused by insects. Aphids are a common "sticky" sort of bug as are mealy bugs. If it is bugs, most can be sprayed with insecticidal soap to kill them.

Can you take pictures of the sticky leaves? Pest bugs are usually on the undersides of the leaves, rolled up in fresh growth or sucking on the tips of the new growth.
www.sumiredesigns.com
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Jun 3, 2020 4:26 PM CST
Name: Big Bill
Livonia Michigan (Zone 6a)
If you need to relax, grow plants!!
Bee Lover Lover of wildlife (Raccoon badge) Orchids Region: Michigan Hostas Growing under artificial light
Echinacea Critters Allowed Cat Lover Butterflies Birds Region: United States of America
My car is covered in a sticky liquid everymorning now. It is parked under oak trees that are just about leafed out.
The sap is dripping from the new leaves, the catkins and probably 23.5 gazillion insects feeding up there. Just very messy. Not all sticky stuff is cause for alarm.
Orchid lecturer, teacher and judge. Retired Wildlife Biologist. Supervisor of a nature preserve up until I retired.
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