Environment & Sustainability Archives - Page 13 of 33

Tiny Trichogramma wasps are mass reared to control caterpillar pests (image supplied by Denis Crawford)

Environment & Sustainability Pest and Diseases

Insects as livestock

05/06/2023 Denis Crawfors 563 Views 0 Comments #Tree, Botanic gardens, Garden Design, gardening, horticultural, horticultural industry, landscape, landscape design, Ornamental trees, Shade Trees

By Denis Crawford

There is a long and fascinating history of mass rearing of various insects, and it seems that the practice is set to expand somewhat.

There has been a lot of press in the last couple of years about farming insects for human consumption.… Continue reading

Wireworms have a distinctive form (Supplied by Denis Crawford of Graphic Science)

Environment & Sustainability Pest and Diseases

What grub is that?

04/05/2023 admin 744 Views 0 Comments #Tree, Botanic gardens, Garden Design, gardening, horticultural, horticultural industry, landscape, landscape design, Ornamental trees, Shade Trees

By Denis Crawford

Insects that have life cycles of complete metamorphosis have larvae that come in a variety of forms.

A life cycle of complete metamorphosis (holometabolous) means hatching from an egg into a larval stage, then pupating, and later emerging as an adult.… Continue reading