Ants
Foraging worker ants cause a nuisance as they travel widely in search of food, following well defined trails and clustering around the food source. Sweet foods are preferred. In gardens their excavations around plant roots make the soil excessively dry. They will also cultivate greenfly, themselves pests, in order to obtain the sugary honeydew secretions that these aphids produce. On the other hand they can be beneficial as predators of other insects and general scavengers. They are obviously an unpleasant sight and may damage food used for human consumption.
