Märgladu võib olla nii vees (puit uputatakse saeveskisse minekuni putukakahjustuste ja kuivamislõhede tekkimise vältimiseks vette – basseini, veehoidlasse, looduslikku veekogusse) kui ka kuival maal (kasutatakse palgivirnade pidevat vihmutamist).
... during the period from 2 April to 31 October, susceptible wood in the form of roundwood or sawnwood, with or without bark, including that which has not kept its natural round surface:
(i) obtained from trees identified as infested by PWN, or situated in salvage areas, or showing any symptoms of poor health, shall either be: ...
- immediately stripped bark at appropriate places outside the forest before being moved under official control to storage places where the wood is treated with an appropriate insecticide or which have appropriate and approved wet storage facilities, available at least during the above period, ...
