Smaller vacuums will offer you more maneuverability than a large one, that’s when you’re working the cracks in the walls. The larvae of the fly feeds on earthworms in grass pasture or lawn areas, then in late autumn and early winter the adult flies will move into homes and other buildings to hibernate over winter. ... such as a sowbug or scud. They do not contain toxins so they are safe to use around pets and children. This was interesting. I trust this article on how to get rid of cluster flies has been helpful. Naturally, you don’t want to share your property with swarms of flies and for a business, it’s not a great way to attract customers either. If they are outdoors, then they will be lodged in-between the cracks in the soil or concrete flooring. Cluster flies are related to blowflies, but feed on different foods. These would be areas that you would have the most organic matter, being your kitchen and dining area. If you come across one cluster fly, then you can be sure there are more in your home. The entire cluster fly life cycle generally takes 25 to 39 days to complete. The development period to an adult is about 27 - 39 days. Sprays must be applied to the outside walls of the structure during the late summer or early fall before the flies get into the walls. Again, in the sunshine. The cluster fly larva will use the earthworm for food until it completes its development. I have noticed out on country walks that flies like to gather on metal gates. These flies do not move fast, and they wouldn’t stand a chance against the quick tongue of a frog. One way to control them is by introducing natural predators that will eat them up. A cluster fly is a pretty general term considering there is a vast amount of flying insects in the genus that is known as Pollenia. Adult cluster flies eat flowers during the summer, as reported by Wikipedia. All bats in the UK are protected by the Wildlife and Countryside Act 1981 and it is illegal to use any insecticides if it might come into contact with bats. lang: en_US. Often they will cluster (as their name suggests!) Damages: They are predominantly considered as a nuisance because of their habit of hibernating inside human houses. They are strictly parasitic on earthworms; the females lay their eggs near earthworm burrows, and the larvae then feed on the worms. If your garden has fruit trees, then you should expect some of the fruits to fall off the branches and rot on the floor. These are the areas where you need to look. The first step to eradicating them would be to locate the spots where they are hiding. If you think that you may have a cluster fly infestation, please feel free to contact Rentokil and we will be more than happy to help and advise on a cluster fly or any other fly problems you may have. The decaying fruit can attract cluster flies, both adults, and larvae. Neem oil for instance can be applied around the soil surface and on the plant itself. The cluster fly larva will use the earthworm for food until it completes development, which can last for 2 to 3 weeks before it pupates. If you have a lot of cluster flies in your home, then you need to employ more thorough insect control methods. The larvae, or maggots, of cluster flies develop as parasites in the bodies of earthworms. In blow fly The adult cluster fly (Pollenia rudis) of Europe and North America is sluggish and dark in colour. Cluster fly control is very simple, just follow the tips in this article and the problem will be solved. Not to worry, the oil will not harm the plants, neither will it damage the soil. A housefly has metallic green or blue colors on their ovular body, but cluster flies do not. What an enlightenment that has been - cheese mites, bed bugs and confused flour beetles, I never knew such things existed but I have certainly learnt how Rentokil expertise and experience eliminates them. On the other hand, if they are gathered on your carpet, then you can use a larger vacuum to suck them up. They also carry and spread diseases too. Cluster fly pupae mature into fully developed adults in 11 to 14 days. As for the chemical-based pesticide, you can simply buy one from a store and spray it into the spaces where the cluster flies reside. Cluster fly eggs are rarely seen as they are deposited in the soil. A cluster fly looks a lot like a regular housefly. The larvae eat earthworms as food for 22 days, to which then they go into the pupae stage for about 12 days before emerging as adults. This means that even if you only spot a few, the chances are there will be more and you could have an infestation somewhere in your home. Identifying their differences will help you decide on the best approach to get rid of them. Cluster flies are parasites of earthworms. Remember that the larvae can also feed off plant sap, so be sure to use a sharp pruning tool to cut of the branches that are dripping sap.