We use some essential cookies to make this website work.
We’d like to set additional cookies to understand how you use forestresearch.gov.uk, remember your settings and improve our services.
Preparing to search
Try not to sample in the rain – but if samples are wet, pack in kitchen towel
All specimens: Send enough specimens to show all stages of the disorder, from apparently healthy to severely damaged tissue. Pack and send soon after collection ensuring that the specimens are not wet and that no moisture has been added. Despatch early in the week.
Small seedlings: Handle very gently to avoid damage during lifting and packing (in the case of JPP’s etc, leave in the containers). Pack in a polythene bag and in a rigid container to prevent crushing.
Small trees: If trees are small enough, dig them up, gently shake off loose soil (retaining it as a specimen if required) and send the whole tree. Cut it into sections if this aids packing.
Root, stem and branch specimens: Include the junction between live and dead bark tissue where possible. If alive, the inner bark is whitish or pinkish when cut into with the point of a knife; if dead, it is brownish or blackish. Delicate material on bark should not be scraped off but sampled by paring off a thin piece of bark or, if the bark is dead or too hard, by chiselling a section out.
Soil specimens: Take small samples of soil from near roots and stems at scattered points at various depths around affected trees to make, in total, at least a cupful. Pack in a sealed polythene bag.
Foliage, woody material and hard fungal fruit-bodies: Pack separately in sealed polythene bags. If leaf fall is the problem, send some fallen leaves together with some twigs with affected leaves still attached. Cut samples of decayed wood to include the zone between decayed and sound wood.
Fleshy fungal fruit-bodes: Send in dry packing material in a stout cardboard box. Please do not use polythene bag since these specimens will putrify quickly.
Insects: Send insects, mites etc, in rigid, escape-proof containers with a small amount of soft tissue paper as packing. Ensure that tops are taped on.
Cookies are files saved on your phone, tablet or computer when you visit a website.
We use 3 types of cookie. You can choose which cookies you're happy for us to use.
These essential cookies do things like remember your progress through a form. They always need to be on.
We use Google Analytics to measure how you use the website so we can improve it based on user needs. Google Analytics sets cookies that store anonymised information about: how you got to the site the pages you visit on forestresearch.gov.uk and how long you spend on each page what you click on while you're visiting the site
Some forestresearch.gov.uk pages may contain content from other sites, like YouTube or Flickr, which may set their own cookies. These sites are sometimes called ‘third party’ services. This tells us how many people are seeing the content and whether it’s useful.