Potential Slug Invasions and their Impact on UK Biosecurity (Part 2)

By Dr Jenna Ross

Guest writer, Dr Jenna Ross, from Crop Health and Protection (CHAP), joins us for the second of her two-part special series (read part 1) on the outputs of her prestigious Nuffield Farming Scholarship. Jenna spent 26 weeks travelling the world studying all aspects of slug invasions and slug control, and in this article discuss the impact of slug invasions on UK biosecurity.

Molluscs (slugs and snails) are a significant risk to biosecurity worldwide due to their:

DrJennaRoss
Figure 1: Dr Jenna Ross
  • Varied diet, thus can be herbivores, predators, scavengers or omnivores;
  • Ability to carry parasites and pathogens, including some that impact on human and animal health;
  • Survival in disturbed environments, especially when they are in close association with human activity;
  • Rapid reproduction, laying hundreds of eggs over a short period of time;
  • Reproduction strategy, in that they can self-fertilise, thus having the ability to survive without a mate, and establish a population with a single invader; and
  • Ability to aestivate and emerge when weather conditions are more favourable.

Continue reading