Chrysanthemums in Aberdeen
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UK Directory of
Common
 Chrysanthemum
Ailments

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Common Pests:
-
Aphids
- Thrips
- Leafminer
- Earwigs
- Slugs 
- Whitefly
- Capsid Bug
- Caterpillars
- Red Spider Mite
- Vine Weevil
- Sciarid Fly
- Stool Miner

Common diseases: 
- White Rust
- Verticillium Wilt
- Powdery Mildew
- Crown Gall
- Chrysanthemum Rust
- Botrytis

Common disorders:
- Nitrogen 
- Phosporus
- Potassium 
- Magnesium
- Manganese
Boron
- Copper
- Iron
- High Salt levels

Suggested settings:
- Monitor
-
Printer

Webmaster:
- contact me

Date last updated: 
24 June 2008

 

Boron (last updated 24 June 2008 )

Excessive supplies of Boron within the soil or potting compost can result in marginal leaf scorch, this is particularly prevalent around the lobes of the leaf. 

Brown margins may develop on the middle and lower leaves.


Boron Toxicity
Mild Boron deficiency may not be obvious from the foliage but flowers can be affected - petals become quilled and do not develop their normal form, they may also bruise easily.

Severe Boron deficiency may cause leaves to become brittle and closely spaced. The tips of middle/ upper leaves may curl upwards and become pale green, yellow or white with a purple tint at the margin.

Remedial Actions
1. it is very difficult to remove excess boron during the growing phase, flooding the soil or compost may help.

2. Boron deficiency can be addressed by the use of borax dissolved in water.

Effect on Flowers:
Boron Deficiency Normal flower



Other information 

 

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Copyright 2008 Paul Barlow.