Tip
Top Bio-Control – Hydroponic Grower's Supply
Eretmocerus
Californicus and Eretmocerus SP. - (Parasite)
Temperature
range
75° Fahrenheit. Eretmocerus
SP: 75°– 100° Fahrenheit.
Adult
Small wasp with golden yellow thorax.
Eggs
E. californicus lays eggs inside whitefly
scale. Sp. lays under whitefly nymphs. (Sp. is
specific to silverleaf, sweet potato and poinsettia
whitefly.)
Larva
Hatch inside whitefly host.
Pupa
Inside whitefly scale turning it to a
golden color over a 2 week period.
Feeds On
Whitefly scale (larva). Best for sweet potato
whitefly. Sp. penetrates and consumes whitefly larva.
Shipped
Shaker bottles - pupa and adults.
Release Rates
4 – 6 per 1 sq. ft. or 2 – 3
per plant at 1 to 2 week intervals until 80% – 90%
of the scales are parasitized. Sp. for
Tomatoes: 10 per 100 sq. ft. every week
for prevention. At first sign: 10 – 15
per 100 sq. ft. every week until under control.
Note: Sp. Is especially good for tomatoes,
cucumbers, peppers and eggplant. Not good for Greenhouse
Whiteflies!
Release Points for Eretmocerus
Hint: Whiteflies are difficult to control if
allowed to build up before introducing Beneficials. Hang yellow sticky
traps to monitor. Introduce Encarsia formosa when whiteflies are
expected or first seen on yellow sticky traps. Predators work well
together with parasites.