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What do you need to make your report

Submitting a TreeAlert report – what information you will need to provide

In order to submit a useful report of a tree health problem through TreeAlert you will be taken through a series of screens where you will be asked a number of questions about your observation. The more information you can provide, the more useful your report will be.

This page helps you to prepare to submit a report by giving an overview of the reporting process and a checklist of essential information that you will need to provide.

Information about you – we need your contact details in case we require additional information. You will need to provide:

  • Your name (first name and surname)
  • A valid email address

You also have the option to create an account. You do not have to create an account to submit a report. However it is very quick and means when you submit future reports the site will remember your contact details and level of experience.


Information about your observation – there are a number of screens dedicated to recording essential information about the tree health problem you are reporting. You will be asked to provide the following:

  • The date of your observation
  • The type of location in which your observation was made (a drop-down list is provided)
  • The location of the problem you are reporting, including country, and either a grid reference (a 10 figure GR is preferable, but we will accept a 6 or 8 figure GR) or a point on a map. If you are using the map tool, make sure you zoom in to the required level to place a point accurately – our ability to locate the affected tree(s) accurately is very important
  • The number of trees affected, their approximate size measured as trunk / stem diameter (a guide is availble on the relevant page)
  • The type of tree affected (conifer or broadleaf), its common name and species (drop-down lists are provided)
  • Information about the problem you have observed, including location on the affected tree (crown, stem or base) and the nature of the symptom(s) (drop-down lists are provided). NB you can report more than one symptom on any affected tree(s)
  • Photographs of your observation. Ideally we would like three good quality photographs showing (1) the affected tree(s) in context, (2) the problem / symptom in context, and (3) the details of the symptom. A guide to taking good quality photographs is available on the photo upload page. The maximum file size for each photograph is 8Mb.


Further resources

How to take photographs

Measuring the diameter of a tree

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