Houzz Logo Print
woodzej

Viburnum Odoratissimum Pest(s)

13 years ago

I'm in desperate need of some advice / help on our poor Sweet Viburnum hedge.
We live in central Adelaide suburbs and the climate is currently cold and very wet.

Since planting our Sweet Viburnum / Odoratissimum four years ago, it has suffered. It's planted in the front yard, north facing.
Please see the photos of the plant and leaves uploaded at:

https://plus.google.com/photos/108320471612379386738/albums/5903651845531343793?authkey=COjDzMWzp7q7nwE

There seems to be an insect eating the new growth and any leaves that manage to grow to medium size, turn a dark brown colour from the outside edges in.
Each year, 50% of the leaves drop off. I have seen a healthy Viburnum hedge, and ours is certainly unwell in comparison.

We've attempted treatments of white oil in the past and more recently with Yates Pyrethrum, one month ago. However since then, the new growth has been eaten.
The only evidence we've seen of pests, (with the naked eye) are the stem lumps and one tiny green caterpillar 6 weeks ago.
We've haven't had many opportunities to spray over winter since we've had continual wet weather.

I fertilize once a month with Dynamic Lifter.

I would really appreciate any advice on treatment. Thank you in advance.

Comment (1)

Sponsored
High Point Cabinets
Average rating: 5 out of 5 stars21 Reviews
Columbus' Experienced Custom Cabinet Builder | 4x Best of Houzz Winner