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5 votes
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What is this big caterpillar in my yard?

It's one of the Hawk Moths, and I think its the larvae of the Death's Head Hawk Moth, Acherontia atropos. The markings on its back start out distinctly blue, but turn to greyish silver over time, as ...
Bamboo's user avatar
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5 votes
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Is there anything that really helps against the Box tree caterpillar once they are spreading?

Well, there are some things you can do that are "Organic," and safe for the environment. #1 you are already doing. Handpick caterpillars from plants as you find them. You may need to patrol your ...
CloneZero's user avatar
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4 votes

Why is this boxwood suffering? Is it box blight or an insect-infection?

After Bamboo's answer I checked again and collected around 20 caterpillars just on one plant (50x50cm) and I'm sure I missed some of them. I checked again for the alert I received from a fellow ...
Patrick B.'s user avatar
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4 votes
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Why is this boxwood suffering? Is it box blight or an insect-infection?

If there's webbing amongst the leaves, my money's on box tree caterpillar, although its odd you've not actually noticed the caterpillars themselves yet. Of all the problems Box gets (and its an ever ...
Bamboo's user avatar
  • 133k
4 votes

Box tree turns bright yellow

It's one of two things. Either it's drowned or it could be box blight. Cylindrocladium blight, Pseudonectria rousseliana, is very nasty. It's best to destroy and not replant. It's possible that the ...
olantigh's user avatar
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3 votes

How far apart should I plant Japanese box for a low hedge?

Rather depends what you mean by Japanese box hedge - as far as I'm concerned, it means varieties of Buxus microphylla (as opposed to Buxus sempervirens). Although the varieties differ a little in ...
Bamboo's user avatar
  • 133k
3 votes

Asian box caterpillar

You don't say where you are in the world, and that's a consideration when trying to give a sensible answer. That said, if its Box Tree Caterpillar, you should have noticed plenty of webbing over the ...
Bamboo's user avatar
  • 133k
3 votes

How tall can Boxwood Green Velvet really grow?

The link you've given does indeed suggest a possible, very mature and eventual height of up to 6 feet. However, every other source on the net says 2-4 feet high and wide, so the odds are with the ...
Bamboo's user avatar
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3 votes
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Why are my boxwood shrubs dropping yellow leaves?

I suspect it's root rot. It's a fungus-like organism that feeds on unhealthy roots and grows to feed on healthy roots. Likely due to soil being too packed and too wet for too long. Fix: Amend the ...
Paul Nardini's user avatar
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3 votes

How do I prune boxwoods to control for boxwood leaf miner?

Also, bear in mind that pruning depends on how badly your plants are infested. You could easily snip off a leaf or two, but when it's your entire plant you definitely need to take other pest control ...
user546840's user avatar
3 votes

When is the right time to trim boxwood?

Boxwood are "pinched" or thinned in the summer, and sheared in the winter. If you shear them in the spring, all the beautiful new growth will be removed, leaving last year's old growth. Once you see ...
C. Kelly's user avatar
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2 votes
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What's the best way to treat boxwood winter burn?

One of the great things about boxwood is that you can prune them hard and they will come back from old wood. Probably the burning was caused by pruning late in the season which caused a flush of weak ...
Colin Beckingham's user avatar
2 votes
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Best season to plant English Box small rooted cuttings into the garden

Early winter in your place is a very good time. It will ensure the plant has 3-4 months to adapt to its new soil conditions without suffering drought. In Europe it is recommended to transplant trees ...
J. Chomel's user avatar
  • 3,740
2 votes

How to plant hydrangeas behind shrub

If you're growing the boxwood as hedging, then presumably it will be a low, clipped hedge - left to grow naturally, these shrubs will reach between 2 and 4 feet, with a similar spread, so it depends ...
Bamboo's user avatar
  • 133k
1 vote

Can box hedging under palm trees be affected by the palms?

Are there yellow structures similar to this hanging from the palms? If so, then what you're seeing is pollen that has been released from the trees above the boxwoods. Note that the link shows date ...
Jurp's user avatar
  • 18.9k
1 vote

Boxwood turning red, guessing it's winter injury, but some leaves are dying now, how to address?

This condition is called the winter bronzing of boxwood. Unfortunately, boxwood cannot tolerate very cold or very hot environments. Too much cold causes its peripheral leaves and stem parts to die and ...
joy's user avatar
  • 686
1 vote

Established Boxwood Shrubs Browned Leaves

Looks like rust fungus. Cut off the ickys and spray the rest with mixture (google that) and if you cut it back it will grow back free of fungus..water and fungus are friends but dont despair it ...
Arrow Dreamer's user avatar
1 vote

How far apart should I plant Japanese box for a low hedge?

Ilex crenata? Any other varietal name attached? If I do my metric calculations this is 6 inches by 12 inches high? Way too small for height. I would make the height at least 2 1/2 feet by 2 1/2 ...
stormy's user avatar
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1 vote

Is there anything that really helps against the Box tree caterpillar once they are spreading?

BT seems the way to go…but whilst I wait for delivery, I’m crushing the little buggers…not so much looking for the caterpillars as homing in on the webby foliage & letting my fingers find them. I’...
Canalstar's user avatar

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