phythphroa

[monkey boy]

hi was just wandering what are the signs and sypmtoms of this disease and what causes it?

 

any prone species towards the disease

 

thanks

[monkey boy]

sorry bout the spelling if wrong

[tommer9]

Try here:Forestry Commission - Plant Health - Sudden oak death - phytophthora alert

[combined tree services]

there are many species suseptable to Phytophthora such as Acer species , Aesculus sp , Castania sativa, Eucalyptus sp , Facus sylvatica, Nothofagus obliqua and procerea , Prunus sp, Tillia sp, Chamaecyparis lawsoniana , Malus in orchards and its not the only fatl disease of Taxus baccata, shrubs such as Erica, Camellia, Hamamelis, Hebe, Peris, rhododendron , Rubus and Syringa are all affected

 

the symptoms are - Tree dies suddenly, or slowly , showing symptoms of a rood disorder such as small , chlorotic and sparse leaves on broadleaves or in conifers , chlorosis and lack of needle lusture.

 

all branches on one side or just the lower ones die . tongues of dead bark , sometimes just a few centimeters long or several metres extend up the stem from dead roots on the same side as the dead branches.

 

site indicators - site lise wet of is heavily irrigated or is mulched with farmyard manure or dressed with other high nitrogen substances. compost heaps or piles of grass clippings are close by the affected tree .

hope this helps you bud , if you want to know any more feel free to ask .

[Bundle 2]

Good effort CTS....there is no end to the grandiose reach and scope of phytopthora spp - an extremely big player in the natural world and well worth a google and read around.....!

[tommer9]

Good effort CTS....there is no end to the grandiose reach and scope of phytopthora spp - an extremely big player in the natural world and well worth a google and read around.....!

 

And arent we Lucky dave- we have our own cornish Phytopthora too!

[gmanntpo]

Phytophthora is indeed a prolific plant killer!

 

Nevertheless a tree with good vitality can survive an attack!

[combined tree services]

And arent we Lucky dave- we have our own cornish Phytopthora too!

 

i think one of the greatest problems with phytopthora is that it's an amazingly adaptable disease , and as like tommer9 has said , down here in cornwall we have a phytopthora -sub disease that has displayed some totally different signs , one of them being that becaus Phytopthera is verry difficult to diagnose due to its lack of fruit bodies and dead bark being colonised very quickly by Honey fungus in particular but also other Saprophytes alot of trees are being identified as being diseased but at face value the disease is identified as Honey fungus and dealt with accordingly thus allowing the spred of Phytopthera to increase . also down here in cornwall a tree alot of trees suffer from salt damage , watter logging and had fires lit close by them of which all apper to exhibit similar symptoms .

 

the disease its self is an extreamly dammaging yet interesting disease that seems so far to be exeptionally adaptable species .

[John Barleycorn]

Phytophthora is indeed a prolific plant killer!

 

Nevertheless a tree with good vitality can survive an attack!

 

Yes, Phytopthora is actully Greek for "plant killer"

 

In fact my potatoes have got it as well (Phytopthora Infestans), potato blight.

 

 

Interested to know what methods you use to disinfect equipment after use on diseased trees in order to prevent spreading it to others ?

[combined tree services]

tbh it is hard to prevent the spread of infection Phytopthora , we have recently done some work in a woodland where there has been a spread of Phytopthora and we were advised to use various disinfectants such as dazomet, chloropicrin,

metam-sodium or non-chemical (e.g.steaming, solarization, biofumigation) can

be used on infested soil. None are 100% effective and they will only penetrate to a

limited depth. Plants can still become infected if the fungus is re-introduced into

the treated area by drainage/run-off water or capillary action, or by the roots growing

down beyond the treated soil.

 

A number of fungicides with activity against Phytophthora are available for use on

ornamentals. These include etridiazole (e.g.Terrazole), fosetyl-aluminium (e.g. Aliette),

metalaxyl-M (e.g. Subdue) and propamocarb hydrochloride (e.g. Filex).

Depending on the product, these can be incorporated into compost (and sometimes

soil)

 

i hope this may help but personally i feet that much like dutch elm back in the 70's and 80's most of these so called remedies are simply pointless