Are Cockroaches and Mice a Problem Aboard Submarines?
Yes, submarines can indeed be home to pests such as cockroaches and mice, albeit with varying degrees of infestation. The confined and sealed environment of submarines can inadvertently make these spaces suitable habitats for unwanted visitors. This article explores the prevalence of pests on submarines, the measures taken to control them, and the historical context of pest control in naval vessels.
Pest Infestations in Submarines
The presence of pests in submarines is not uncommon. Due to the nature of the environment, cockroaches and mice can find their way aboard, often through food supplies or other materials. The regular cleaning and maintenance routines on submarines aim to minimize pest populations, but if food and water sources are present, pests like cockroaches can thrive.
Cockroaches: Resilient and Persistent
Cockroaches are particularly resilient and can survive in harsh conditions. Evidence of their presence dates back to the days of sailing ships as noted by Roth and Willis (1957). In modern times, the German cockroach (Blattella germanica) remains a significant pest aboard naval vessels, including submarines.
Historical Context and Modern Solutions
The challenge of controlling the German cockroach on submarines presents a unique opportunity for naval entomologists. In a particular study, eight submarines were treated with dichlorvos aerosol at a rate of 12 ounces per 10,000 cubic feet. Three of these submarines were further treated with propoxur bait to control the nymphs that hatch from eggs not affected by dichlorvos.
The effectiveness of the treatment was remarkable, with better than 97% control obtained initially after using dichlorvos in all treatments. Propoxur bait was used specifically to control the nymph stage of the cockroach, ensuring a comprehensive approach to pest management.
Prevention Measures: A Priority for Submarine Crews
Submarines employ rigorous sanitation protocols, including regular inspections and pest control treatments. The confined space and the need to maintain a clean and safe environment make pest management a top priority for submarine crews. These measures serve to keep pests at bay and maintain the operational readiness of the vessel.
Submarine Crews' Pest Control Efforts
The crew's efforts to control pest populations include the use of traps and poisons. Additionally, the crew works to keep the submarine clean and free of food scraps, which are a major attractant for pests. By maintaining a regimented cleaning schedule and keeping the ship's environment pristine, the crew significantly reduces the likelihood of pest infestations.
Conclusion
While the presence of pests is a possible issue aboard submarines, the crew takes significant steps to minimize their occurrence and impact. From historical methods to modern chemical treatments, the ongoing battle against submarine pests continues to be a challenge, but with effective measures, these environments can remain safe and operational.