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Pests, diseases and weeds
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Total number of topics in this forum: 75
Question from
Paul Barker
It is on a wild rose, part of a mixed hedge. Noticed for the first time last year and the plant has now all but died. This is from another plant in the same run of hedge. Any ideas on what it is and how to treat it?
Click images to enlarge
- Views: 244
- Replies: 2
- Posted: Tue. 10th April 2012 16:50
- Last reply: Wed. 11th April 2012 08:45
Question from
Deone Loots
Hi there
I want to plant horseradish and jerusalem artichokes in my raised bed garden. I am not entirely sure how capable they are of spreading beyond the beds assigned to them. What are the chances that their roots would find a way under the ground into another bed? I understand that they both spread through the rhizomes/roots - does this mean that only the part we would use and eat can grow into a new plant; or the little white roots as well?
- Views: 342
- Replies: 2
- Posted: Wed. 4th April 2012 09:07
- Last reply: Thu. 19th April 2012 10:22
Question from
Ray
Hi
Can anyone tell me what this weed is - which is rapidly advancing across my garden - and how to kill it without general spraying? (I know about the dandelion in the photo!)
- Views: 134
- Replies: 5
- Posted: Sun. 27th November 2011 12:22
- Last reply: Tue. 29th November 2011 18:08
Question from
Anita Sullivan
Five years ago I moved to a house with an neglected garden featuring one ornamental cherry. It's now about 3.5m high. I've been struggling with it from day one. First it had canker. I removed affected branches in summer and sealed the wounds. Now it seems to have a crown gall, a corky lump 20cm across at soil level against the trunk. The tree's leaves are slightly curled in and have lost their gloss. It seems pretty sick. So my questions are:
1) Is it definitely crown gall?
2) If so, is there any way to treat it? Is it too late?
3) If I have to take down the tree, what can I do to protect my fruit trees?
4) I've read the bacteria can live up to five years in the soil. Is there anything I could plant in its place, other than grass?!
Any help very much appreciated.
- Views: 220
- Replies: 2
- Posted: Fri. 25th November 2011 19:17
- Last reply: Sat. 26th November 2011 10:46
Photo from
roy burnham
Can anyone tell me how to prevent small black spots appearing on my Scrumptious apples next year? I already grease band the tree.
See photo.
Click to enlarge image
- Views: 275
- Replies: 2
- Posted: Tue. 25th October 2011 18:04
- Last reply: Tue. 25th October 2011 19:23
Question from
Dave Jones
I have just been made aware of Neem Oil (via a cousin in New Zealand) and, knowing nothing about it, did a bit of research on the Internet.
It seems to be the answer to my prayers as it is claimed that it controls only sucking and chewing pests, preventing them from breeding and deterring them from eating, so eventually they die out. It is also claimed that any pest eggs will not hatch.
I have an intermittent problem with white fly and red spider in my greenhouse. I use a spray diluted from boiled rhubard leaves which is effective against the red spider but it is indiscriminate and can kill all insects, including bees so I confine its use to the greenhouse in the morning before the vents are opened.
Has anyone used Neem Oil as an insecticide and, if so, how effective is it?
- Views: 66
- Replies: 2
- Posted: Wed. 5th October 2011 20:08
- Last reply: Tue. 10th April 2012 18:27
Question from
Tracey and Ian Blackmore
Hi
We have seen this insect on our hardy orange lily. Does anyone know what it is?
Thank you. Tracey & Ian Blackmore
- Views: 257
- Replies: 3
- Posted: Thu. 1st September 2011 21:47
- Last reply: Fri. 2nd September 2011 22:56
Question from
Rosemary
Hi,
I have three standard bay trees which I have in containers. I overwinter them in a cold conservatory. They have been fine until this spring when they all developed a sticky liquid over most of the leaves. Some of the leaves have gone brown. As I'm new to gardening I'd appreciate some advice on what to do.
- Views: 83
- Replies: 2
- Posted: Thu. 25th August 2011 18:52
- Last reply: Tue. 30th August 2011 08:06
Comment from
Julia Warnes
Hi I seem to have three problems in one. I have two varieties of Aquillegia in one of my beds "william guiness" and black barlow. One of them seems to be flourishing but the other looks really ropey. As soon as any foliage arrives it just seems to die off and is covered in browny/grey patches. The same seems to be happening to the honeysuckle in the same bed. The lilac, fuschia and euonymous in the same bed are not affected.
There is also the tiniest insect hanging around there. They look like the tiniest,minutest white moths in the world, about the size of a pinhead. Could this be connected or are the plants just not happy? It's a sheltered position that gets the sun for most of the afternoon.
Thanks very much, sorry if it's an obvious query!
- Views: 73
- Replies: 1
- Posted: Tue. 9th August 2011 11:54
- Last reply: Thu. 18th August 2011 20:09
Comment from
Barry Tabor
My neighbour had a walnut tree in his garden when we moved here, and it was 25 feet tall, and gave us beautiful shade and many nuts. Two springs ago, it started to put forth new leaves, but these quickly died, and the whole tree was dead within a short period. Around the same time, a Clematis, 2 Choysias, and a couple of other shrubs also died quickly. I called in the local arboriculturist, suspecting Honey Fungius. He tested and could not find any trace of a noxious disease, fungus or chemical. He shrugged his shoulders and left. I do not believe he looked very hard. Does anyone have any idea what might be the cause of these untimely deaths, and what action we ought to be taking to eliminate it, please? A Sumach nearby looks a bit sick, but other plants, inclusing a replacement Clematis are doing fine near the fateful spot.
Barry
- Views: 122
- Replies: 2
- Posted: Sat. 6th August 2011 09:27
- Last reply: Sat. 6th August 2011 16:57
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