Eretmocerus eremicus

Why do you choose us?

It is a material of European quality from Bioline agrosciences.
A wide range of packaging for easy application, depending on the specific situation.

Exterior

Eretmocerus eremicus is a tiny parasitic wasp (~1 mm in length). Female E. eremicus is pale lemon yellow, male is yellowish-brown in color. Unlike E. formosa, E. eremicus lays its eggs not in the body of larva, but between whitefly larva and leaf. Females also can pierce larvae by their ovipositors and feed on the hemolymph (blood) that exudes from the wound.

Life cycle

All the instars develop inside the whitefly larva. Females lay their eggs between the whitefly nymph and the leaf surface. The newly emerged larva chews a small hole into the whitefly. After 3-4 days of chewing the parasitoid larva enters the host where it remains dormant until the whitefly pupates. Once the whitefly pupal stage is reached, the wasp larva releases digestive enzymes and begins ingesting the semi-liquid body parts of the pupa.

Eggs

The female lays teardrop-shaped eggs under whitefly larvae. In 3 days transparent eggs become light brown. Depending on temperature females can lay from 120 to 270 eggs.

Larvae

The wasp larva passes through 3 instars. At the end of development, it fills the puparium, which turns into yellowish color, through the covers the wasp shapes are seen.

Influence of temperature on beneficial insects’ development rate

Feeding

The adult female consumes hemolymph (blood) that exudes from the wound. In such way, the beneficial insect can kill up to 40 % of the total pest number.

Eretmocerus eremicus is produced as scattering material, as cards and blisters.

For scattering material:

• make release early in the morning or in the evening to avoid direct sunlight;
• immediately before use incline the bottle horizontally and turn it gently to mix its contents;
• open the bottle and pour out its contents on plants or substrate, evenly spread the material in outbreaks;

For blisters:

• separate the blisters from each other by gently folding and tearing along the perforation;
• fold the card slightly forward near the top of the blister and pull the tab outward;
• hang the open blister on the leaf stalk so that it is shaded.

For cards:

• gently separate the cards, avoid pressing zones with fixed pupae;
• hang the card in a place protected from direct sunlight.

Recommended standards for Eretmocerus eremicus applying

Conditions and duration of storage

• transport and keep at 5 – 8 ° C;
• use within 18 hours after receiving.

Package:

• 30 ml-vial contains 3 000 insects;
• 20 blisters contain 5 000 insects;
• 60 blisters contain 3 000 insects;
• 200 blisters contain 10 000 insects;
• 250 blisters contain 15 000 insects;
• 20 blisters contain 10 000 insects.