Search Hydroponics Online:
New Immigration Laws Pave the way for Hydroponic Farming
Powdery and Downy Mildew
Building your own Indoor Grow Room part 2
Building your own Indoor Grow Room part 1
The Benefits of Chelated Micro-nutrients
Is the pH really that important?
Getting Bigger Yields From your Hydroponic Plants
Tips for getting the most out of your nutrients
Millions of dollars lost in hydroponic tomato plant sabotage
Growing Hydroponic Raspberries, part 2
Adidas nmd mens black
Cheap new balance shoes
Buy cheap jordans online real
Air jordan 5 retro
Cheap authentic jordans websites
Inside Adidas' Latest Sneaker Collab
Supercharge technological know-how can make Adidas the most secure
Nike's most recent Air flow VaporMax package makes use of some sort of gradient
Nike’s Innovative Cortez Trainer Is focused on Girlfriend Energy
Your Upgraded Nike Weather Force-1
Conversion of DWC to RDWC
Coco Peat in NFT
Nike hervorragenden großhandelspreis sand ihre schuhe müssen
PVC vs. Vinyl Fence Posts for Hydro
new to hydroponics and off to a bad start...
Air Max 2016s will certainly benefit the Local American youth sport and training
This version on the adidas Superstar Boost opts for more of a premium appearance
Nike Air Max 1 Ultra TWO. 0 Essential colorway gives you
Drip Vs DWC
White Anti-aphid Mesh
hydroponicsonline.com

Lesson Nine

Biological Pest Control 9-2

Garden Pests and Their Biological Controls

Pest:

Whitefly:

Whitefly are an extreme problem for greenhouse growers, field and or-
chard crop farmers and home gardeners. The whitefly sucks large quanti-
ties of sap from the plant and secretes the sugars as honeydew. This
makes the leaves sticky and susceptible to fungal growth and rot. In a ser-


Whitefly

ious infestation, the fungus and rot associated with the honeydew can kill an entire crop in a matter of weeks. In addition, whitefly can pose a great threat to plant health because they are able to transmit many plant viruses.

A whitefly looks like a small white moth, 1/8" in length. They rest on plant leaves and will quickly fly away when disturbed.

Whitefly eggs on the
underside of
a tomato leaf


Whitefly
lie their eggs on the under side of a leaf.
Shiny, sticky leaves are signs of whitefly presence.

Biological Control:

Encarcia Formosa.

This tiny parasitic wasp lays its eggs in the larvae of
the whitefly. Parasitized larvae turn black and are eas-
ily recognized. Adult EncarsiaFormosa also feed on
honeydew and the body fluids of whitefly larvae.


Encarcia Formosa

HOME / LAST PAGE / NEXT PAGE