Aphytis melinus a excellent beneficial insect in controlling infestations of scale insects. Aphytis melinus (golden Chalcis) is a small parasitoid wasp yellow. USE: Aphytis melinus is a parasite that is effective on several different kinds of scale, including: red scale, yellow scale, and oleander scale. They are commonly . Aphytis melinus. Appearance: Aphytis melinus is a yellow parasitoid of about 1 mm in size. The difference between male and female wasps can not be seen with .

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Aphytis are usually delivered to the orchard or dispatched by overnight courier, and should be received within 2 days of dispatch. Minimum 25, wasps per hectare 2. With some experience, the level of parasitism can be assessed with the aid of a microscope.

The adult female wasp lays her eggs under the scale cover onto the body of second-instar and unmated mature female scales. Despite the fact that mellnus insectaries rear A.

This chalcid wasp -related article is a stub. The male’s window is during the second instar and pre-pupae development. Aphytis melinus adults can be confused with the adult male California red scale; however, the male scale has long antennae, a dark band around its back, and only one pair of wings. The larva develops aphyytis feeding on the pest ectoparasite and inevitably killing it at the end of its growth stage. Aphytis melinus is an important parasite of several species melinue armored scales including California red scale, latania scale, San Jose scale, and oleander scale.

Citrus trees less than 5 years old are usually poor candidates for biological control because they offer little natural shelter for beneficial organisms. Some plants can also be useful as a supply of nectar for adult Aphytis to feed on.


Aphytis melinus Scientific classification Kingdom: Honey is smeared under the lids of the cups to aphygis food for the wasps in transit. It is best to release Aphytis melinus in week intervals upon detection of scale until low scale numbers are apphytis.

Aphytis feeds on and oviposits in immature scales, preferring virgin adult female scales. The release rates depend on the host plants.

We also stock a range of traps and aphyits tools. In some cases the scale is killed by adult hosts feeding on them.

Aphytis melinus

Suitable crops Citrus is the main crop attacked by red scale, but other hosts include passionfruit, olives, walnuts, roses and ivy. For noncommercial purposes only, any Aphyts site may link directly to this page. The window for female control is during the second and third instars of development while she is a virgin. Farm practices that reduce wind, increase humidity and minimise dust in the orchard will help the Aphytis to establish.

If it accepts the scale as a host, the female will lay an egg in the host.

Aphytis (Aphytis melinus) – Biological Services, Australia

It then transforms into a pupa inside the body. When the egg hatches, the larval wasp consumes the internal organs of the pest. Insecticidal soaps are harmful to all stages of Aphytis, but have no melinys effect. If harsh toxic pesticides must mflinus used, Aphytis should be re introduced in 4 weeks after application. Chemical use Aphytis wasps are very effective parasites of scale insects ahpytis they are delicate organisms and are easily harmed by pesticides. It is difficult to detect the adult wasps after release as they disperse throughout the orchard.


Information on a range of key pests that can be controlled biologically in Australia using our products. This releasing plan is only a guide, the important thing is to ensure that the Aphytis are spread throughout the grove. Minimum 50, wasps per hectare aphytix cups per hectare Tips for success Farm practices that reduce wind, increase humidity and minimise dust in the orchard will help the Aphytis to establish.

To reproduce, the female Aphytis lays an egg under a virgin female scale.

Aphytis are sensitive to many pesticides and it is important to check for pesticide residues before releasing the parasites.

Drift of pesticides from neighbouring blocks should also be prevented. Aphytis feeds on immature armoured scales scale insectsbut lays its eggs under virgin females. Several other closely related and difficult to distinguish Aphytis species attack various armored scales in California.

The next generation of Aphytis emerges about days later to mate and continue the cycle. What are you searching for?

Aphytis viability decreases rapidly with prolonged storage. If infestation levels are high apply insecticidal melihus weeks prior to release. This page was last edited on 8 Julyat The optimum time for augmentative releases would be the seven-week period from mid-March through the first week in May. Aphytis wasps are very effective parasites of scale insects but they are delicate organisms and are easily harmed by pesticides.

It has been successfully used against red scales Aonidiella aurantiiyellow scales Aonidiella citrinaSan Jose scales Quadraspidiotus perniciosusapple mussel scales Lepidosaphes ulmi and false oleander scales Pseudaulacaspis cokerelli.