I'm hard pressed to find anything truly irritating in our natural environment here in the UK. Midges are a minor annoyance in some areas and horse flies can be a nuisance that hurt, ticks are a problem and carry disease. Oh and some joker planted Common Lime trees in our car park where they drip sap onto the cars all summer and autumn; I'm sure whoever did it laughing at us, but those trees are planted not a natural occurrence in a nature area.
For true annoyances in nature I have to go overseas and be eaten alive by mosquitoes, have flies crawling all over me and my food, ants swarming over everything that's edible and carrying it off, scorpions in my boots, snakes in my tent, leeches sucking my blood, etc.
For true annoyances in nature I have to go overseas and be eaten alive by mosquitoes, have flies crawling all over me and my food, ants swarming over everything that's edible and carrying it off, scorpions in my boots, snakes in my tent, leeches sucking my blood, etc.