Apologies for being the one to inform you, but it appears that your potato crop may have fallen victim to rats. Regrettably, the raised beds provided the perfect environment for these rodents as they prefer to burrow in soil that is loose and well-drained. This is the same reason they are often seen as nuisances in compost heaps.
Rats are omnivorous creatures, savouring a diverse diet of vegetables, grains, seeds, and fruits, digesting them straight from living plants or stocked harvests, including squashes, pumpkins, beetroot, and seeds. They are also known for raiding bird-feeding stations. Notably similar to us humans in their ingenuity, adaptability, and intelligence, they never fail to recognise opportunities for securing food or shelter. This is why their presence often ominously suggests human activity. Sadly, farming is one such activity that tends to attract them, unless adequately protected. A report from BBC revealed around 40% of agricultural establishments in the UK are inhabited by these rodents, highlighting their widespread existence.
It’s worth noting that rats pose a significant health hazard for humans, specifically when it comes to crops they have feasted on. They can transmit Weil’s disease through their fresh urine into the soil, and it can enter our system through any cuts or grazes on our hands, or even by accidentally consuming contaminated material.
As for your remaining potatoes, I would strongly propose discarding the rest of the harvest while wearing gloves to prevent any potential infection. Subsequently, evaluate your garden or plot for any possible areas that may serve as a comfortable nesting site for the pests.
Rats prefer to make their homes in quiet, protected spaces that are within a short distance from a food source. For instance, if bird or pet food is stored in a shed located close by, it’s advisable to keep it in containers that are securely covered. Regular cleaning of bird tables and feeders is crucial and any food that lands on the floor should be consistently picked up and put in the bin. Ensure compost piles are covered and efficiently managed to facilitate swift decay. This can be achieved by properly insulating them, alternating between layers of carbon and nitrogen-rich materials, and stirring them for aeration. You may also find it helpful to engage a reliable pest control firm that can provide expert recommendations suited to your location. Another effective method of rodent control, that negates the need for toxic bait, is to get a house cat. Their presence can make a notable difference in maintaining the rodent issue.