Wednesday, November 13, 2024

Pest and Diseases

Horticultural pest and diseases

Butterflies have more than aesthetic value in gardens (image supplied by Denis Crawford)
Environment & SustainabilityPest and Diseases

Where have all the butterflies gone?

By Denis Crawford

Butterflies are desirable in gardens because they are indicators of a healthy environment. Unfortunately, they are under threat from climate change.

People enjoy seeing butterflies fluttering around their gardens and in bushland. Butterflies are considered to be harmless, perhaps with the exception of the cabbage white butterfly (Pieris rapae), and they are often quite large, colourful, and aesthetically pleasing.… Continue reading

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Stalked lacewing eggs (Image by Denis Crawford)
Environment & SustainabilityPest and Diseases

Every insect has an enemy

By Denis Crawford

We all know about the natural enemies of pest insects, but did you know that beneficial insects also have their enemies?

I have often said “for every insect out there, there is probably another insect that wants to feed on it or breed in it”.… Continue reading

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