The National Pest Technicians Association's annual report identified a big jump in rat and mice populations in the UK.
Results from an NPTA survey showed that almost 60% of councils now charged for domestic rat-catching.
Chief executive John Davidson warned of a risk to public health.
'More and more people are turning to DIY pest control and
without the professional knowledge of pest control technicians this is a
step in the wrong direction.'
The NPTA also identified 'serious concerns' about a lack of liaison between local authorities and water companies, the overfeeding of wild birds in domestic gardens and growing amounts of fast food litter and fly tipping.
'We have a couple of weeks of publicity when the report comes out and then it gets forgotten again. What will it take for someone to sit up and take notice about what it going on?'