Some Technical Information To Be Getting On With
Below is some technical information that will explain my thoughts and how the contagion came about and spreads
Several species of parasitic blood flukes (trematodes), of which the most important are Schistosoma mansoni, S. japonicum, S. mekongi and S. haematobium.
Infection occurs in fresh water containing larval forms (cercariae) of schistosomes, which develop in snails. The free-swimming larvae penetrate the skin of individuals swimming or wading in water. Snails become infected as a result of excretion of eggs in human urine or faeces.
Source: The World Health Organization
Common names the "grey field slug" and "grey garden slug", is a species of small air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Agriolimacidae. This species is an important agricultural pest.
'Sleepless slugs' on rise, say experts
Last year's wet summer, followed by one of the warmest winters on record, has helped to create a generation of sleepless slugs, wildlife experts have warned.
There are about 30 species in the UK. Most are vegetarian but a few are carnivorous.
Taken from BBC news article:
Dated: 29th April, 2016
It’s believed that there are some 20,000 slugs and snails in the average garden, with only 5% above ground at any one time. The rest are underground eating roots, seed sprouts and laying up to 100 eggs several times per year.
Empirical evidence obtained from slug and snail racing says they can travel approximately 13 inches every 2 minutes - that’s just shy of 238 metres daily, pretty 1 kilometre per day if it moved in a straight line.
Earwigs make up the insect order Dermaptera. Earwigs have characteristic cerci, a pair of forceps-like pincers on their abdomen, and membranous wings folded underneath short, rarely used forewings. Some groups are tiny parasites on mammals and lack the typical pincers. Earwigs are found on all continents except Antarctica.
Excerpt from Wikipedia.