- Wasps can cause alarm when present in large numbers and where the nest is in a place where insects can interfere with humans.
- Can inflict painful, dangerous stings, especially to those people with allergies.
- When the sting is inside the throat, the effect can be fatal.
Control of Wasps
- CSS recommends the use of Electronic flying insect control units which are extremely effective at attracting and controlling wasps.
- Other treatments involve applying liquid insecticides, aerosols or dusts in or around the entrance of nests.
- For the control of adult wasps, residual or space sprays can be used.
- Adult worker wasps have the characteristic black and yellow patterning on the abdomen.
- Length is between 15 and 20 mm long.
- Have a black head and thorax.
- Fore and hindwings are held together by a row of minute hooks giving the appearance of only one wing per side of the wasp.
- The wings are heavily veined.
- Wasps are colonial insects living in social groups.
- Over wintering queen makes a small starter nest from paper made by mixing wood and saliva and establishes each colony in the spring.
- The colony grows throughout the summer and the nest with it.
- Many thousands of individuals are associated with each nest, with the workers feeding on nectar, sweet materials and at certain times, insect larvae and other animal pieces.
- The colony develops males towards the end of the summer to mate with presumptive queens, which, when mated, overwinter to start a new colony the following year.
For more info on this insect check out our page on Wasps as summer seasonal pests.