Tropical warehouse moth infestation
The Tropical Warehouse moth is a popular stored product pest in tropics and sub-tropics, as well as temperate climate countries, where it survives the winters in heated areas. It infests products like cereals and cereal products, flours, dried fruit and cassava, cocoa beans, mace, cowpeas, oil seeds and oil cakes, etc..
This pest is grey-brown in colour, banded with lighter and darker colours on its wings. Its length is 7mm to 9mm at rest and 15mm to 20mm with spread wings. Depending on the diet, the larvae of the moth can be off-white, yellowish or reddish colour and have a caterpillar shape.
The signs of the Tropical Warehouse moth infestation are external feeding and silk webbing made during feeding, which contaminates nearby products.
The Warehouse moth is not considered dangerous to people or pets, however the infested products are not suitable to use and should be disposed of.
Tropical warehouse moth treatment and control
The Tropical Warehouse moth is controlled in a similar way to the other stored product insects. Good housekeeping in the area, where the products are stored and used. Regular cleaning and sanitisation is required.
To monitor and control minor infestations pheromone traps can be used, which contain the laboratory replication of the natural moth hormones used for communication between the moths. This attracts the moths to the sticky traps and they remain stuck into it.
If the conditions of the premises allow then carbon dioxide and low oxygen treatments can be used to eradicate the infestation. If these are not suitable then freezing or heating the area can also be done as it will eradicate all life stages of the infestation.
Fumigation is also a suitable method for Tropical Warehouse moth infestation eradication and control. Just like the heating and freezing treatments, it will exterminate all life stages of the infestation but it will not prevent a new infestation from re-introduction. This is why insecticides are used in conjunction with these treatments, so that re-introduction in future can be prevented.
Prime Pest Control provides Tropical Warehouse pest control services to domestic and commercial customers in North, South, West, East London and the surrounding areas. Our experienced BPCA-trained pest technicians will inspect your premises and will create a tailored action plan and integrated pest management plan making your personal or business needs a priority.
About Tropical warehouse moth
The Tropical Warehouse moth (Cadra Cautella) infests cereals and cereal products, flours, cocoa, dried fruit, etc… It is most often that the introduction of this moth is with infested raw materials or imported products.
The adult female moth pays up to 300 eggs, which hatch within 3 days to 1 week. The larval period lasts about 30 days and the are five instars in total. The larvae are considered the ‘pest’ form of this moth. Usually, pupation happens in the product, where the larvae are, however, in cases of heavier infestations larvae may crawl on walls and in between product packs. The larval period takes about 22 days, depending on the conditions. It ends with the formation of a cocoon, where the pupation happens and takes about 1 week to complete. The adult emerges from the cocoon in the late afternoon of the day. The total life cycle of the Warehouse moth takes between 29 and 31 days, depending on the conditions.