Denis Crawford

About Denis Crawford

Denis Crawford has studied, photographed and written about insects for more than 35 years. His background includes a decade in entomological research, and many years collaborating with an integrated pest management consultancy. Denis is author of Garden Pests Diseases & Good Bugs: the ultimate illustrated guide for Australian gardeners and co-author of Backyard Insects (soon to be released in an updated edition. See more posts on garden insects on his blog One Minute Bugs.

Book Review: ‘1,000 Butterflies’ by Adrian Hoskins

Who doesn’t love seeing a butterfly fluttering through the garden? Adrian Hoskins must because he has spent the last 35 years studying and photographing them in various parts of the world. The study and conservation of butterflies has been a lifelong passion for Hoskins, a passion that began when he was a boy. Hoskins spent many years working voluntarily for Butterfly Conservation in England, as well as leading many butterfly watching tours, and entomological expeditions. Continue reading

Common names versus scientific names

What’s in a name, you might ask? A scientific name is a two-word name, which is unique to a particular organism, unlike common names where there may be several different common names for the same organism. Take the scientific name of a large American native cat, Felis concolor, for example. The cat has several common names across its range including puma, cougar, mountain lion, panther and catamount. Continue reading

Why do we have plant pests?

Around about now your garden should be teeming with insects. Luckily, most insects are not harmful to us or our plants but some of your garden visitors will be pests. Why do some insects become pests? There are several reasons! Continue reading

A balance between garden pests & beneficial insects

Early one morning I was shooting a video of cabbage aphids (Brevicoryne brassicae) and their primary wasp parasite (Diaeretiella rapae) on a broccoli plant – as you do – when along came a very different wasp. The cabbage aphid parasite (Diaeretiella rapae) is a tiny little thing about 3 mm in length, but these other wasps were three times that length. They were obviously attracted to the aphids and ‘appeared’ to be stinging them. But were they really? Continue reading