Common indoor plant pests - click on the image for more data

Aphids

aphids, green aphid on plant, pest insect, bugs

One of the most common and most destructive pest insects found in horticulture. Not longer than about 4mm, have a bulbous abdomen with twin "tailpipes" and can appear in many different colors. May have wings or be wingless.


Spider Mite

spidermites, spider mite, cannabis pest, plant pest

Most spider mite infestations are intitally noticed by seeing damage to the leaf where the mites have sucked dry the tissue leaving yellowing and dead spots.  The leaf will yellow, wilt and finally fall off.  In extreme cases you will see spidermite webbing.  At this point it is too late to introduce predators. 

Fungus gnat

fungus gnat, plant pest, larvae

First indication of a fungus gnat infestation are the harmless flying adults.  

Secondary indication is wilting of the plant as the roots are being eaten away by the fungus gnat larvae under the soil. 

Thrips

thrips, plant pest

Due to the tiny size of young thrips, you will likely first notice a silvery or transparent area with black dots on the leaf surface. They can also cause deformation of shoots and flowers. 

Whitefly

whitefly

Whitefly are usually first noticed as tiny white moths that flutter up when the plants are disturbed.  Upon further inspection you will notice discolored patches and sooty mold growing from their secretions.  The larva appear as a small scale on the underside of the leaf. 

Broadmite

broadmite leaf damage

You will never see a Broadmite unless you have a microscope.  They announce their presence by making the leaves of the plant curl inward from the edges and become shiny almost waxy looking.

Common in-ground garden pests - click on image for more data

Rhodo or Vine Weevil

weevil larvae, vine weevil, rose weevil

Weevils are double the trouble.  They are destructive as adults and larva.  The adults look like a long nosed beetle and chew on  leaves and new growth.  The larvae are a cream colored grub with a brown head and chew on roots and soft plant tissue near the soil surface. 

Wire worm

wire worm, click beetle larva

These pest are the larvae of the click beetle.  Damage is found as holes chewed into root vegetables, or root damage to plants.  Easy to spot in the soil as light tan, shiny skinned "worm"

Chafer Grub

chafer beetle, chafer grub

Most people don`t understand why crows and raccoons are digging up their lawn.   They are usually after the large grubs that are feeding on the turf roots. 

Carrot rust fly

carrot rust fly maggot pupae

Seen as cream colored maggots up to 8mm long  chewing tunnels in root vegetables including carrots, celery and parsnips.  The adults are a  shiny black fly 6mm long with a redish head and yellow legs.