Common Plant Pest & their damage

[Farhan Ahmed]

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[Farhan Ahmed]

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[Mustansir Billah]

This for sure beneficial.

[khabbab]

Very good. If you could also post the affected leaves for each insect. As each insect affects the leave differently. So just by looking at the leaves, one can confirm which pest it is. Specially for following:

green aphids
black winged aphids
broad mites
spider mites
mealy bugs

Most insects cannot be seen by human eye so spots on leave is the only thing which can help identify. also try to find back side of leaves shape in case of each insect.

[Farhan Ahmed]

Will do that.....and what i will try to do is to take one common plant so that observer can distinguish. Lets hope i find good pictures on internet.

[Farhan Ahmed]

Aphid damage
Observe stunted growth and leaf curling/distorted leaves at latter stage. Aphid mostly attack new growth and flower buds(sometimes observe them just below buds)
Aphid will not chew the leaves, but will suck all the juices from the leaves making them pale/dull or yellowish.

[Farhan Ahmed]

Fungus Gnats.....Winged Aphids

Winged aphids have small fly like appearance. Generally their presence on the host plant is less and solitary. Maybe also due to their more mobility. Difficult to control. Observe paleness of the plant. Fungus Gnats/Winged aphids can easily be picked up sitting on the topside of leaves. Black in color.

[rafique]

It is a great help thank you.

[M Farooq]

Thanks for sharing. I was curious about the some insects but didn't know their names especially the loathsome "white grub". Many times henever my potted plants were dying I found this larva in the pots.

[Farhan Ahmed]

Caterpillar Damage

Something you can not miss. caterpillar will straightaway chew the leaves(sometimes stem) in irregular patterns. Damage is very quick and often in single day entire leaf can be gone. They tend to hide in days time. They love to eat flower buds. Appear in late spring and early summer. Infestation is preceded by appearance of small black egg on the host plant. These eggs are numerous in number so easily picked up. Destroying the eggs is the best way to control the caterpillars. Caterpillars will be generally found underside of affected leaves or hidden somewhere close to the base of plant in daytime.





damage to flower bud


Eggs