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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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The adult female wasp lays her eggs under the scale cover onto the body of second-instar and unmated mature female scales. Drift of pesticides from neighbouring blocks should also be prevented. Orders received after noon on Tuesday are sent the following Monday. For noncommercial purposes only, any Web site may link directly to this page.

It is best to release Aphytis melinus in week intervals upon detection of scale until low scale numbers are observed. Aphytis melinus DeBach, We also stock a range of traps and monitoring tools.

If infestation levels are high apply insecticidal soap weeks prior to release. Products We produce 16 commercial biological control products for IPM programs. Some plants can also be useful as a supply of nectar for adult Aphytis to feed on. Aphytis are tiny yellow wasps capable of short flights within a tree, or from one tree to the next. Freight is charged at cost.

From Wikipedia, the free encyclopedia. Views Read Edit View history. Release at dusk or when windows are covered so that the Aphytis will find infested plants quicker.

An open cup may be left in a tree or applicator may walk through the rows releasing at will for rapid dispersal. During this time the scale population is still at an ebb after coming through the winter and yet weather conditions are generally warm enough to be conducive to releases of our insectary-reared parasites.


Releases can continue through summer after pesticide applications and heat waves.

Aphytis melinus ~ Entocare Biologische Gewasbescherming

Aphytis melinus is an important parasite of several species of armored scales including California red scale, latania scale, San Jose scale, and oleander scale.

Aphytis wasps prefer healthy, well-foliaged trees, which help to provide shelter from extremes of environmental conditions. University of California Agriculture and Natural Resources. Ordering and accounts Orders are sent via express courier services on Monday or Tuesday of each week, and usually arrive within a couple of days. This chalcid wasp -related article is a stub.

The parasite larvae develop under the scale covering. Release parasites at release points per acre. This chalcid wasp drums its antennae against the scale insect to find out if it is healthy, if it is already parasitized, how large it is, etc.

Under-tree irrigation is less effective in increasing humidity but still valuable.

Aphytis feeds on immature armoured scales scale insectsbut lays its eggs under virgin females. Aphytis viability decreases rapidly with prolonged storage. If a parasitized scale cover is flipped over, the dead scale will be flat and dehydrated, and the parasite’s cast skin and fecal pellets will be evident.

If harsh toxic pesticides must be used, Aphytis should be re introduced in 4 weeks after application. 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.

Chemical use Aphytis wasps are very effective parasites of scale insects but they are delicate organisms and are easily harmed by pesticides. The larvae consume their host, and each A. The optimum time for augmentative releases would be the seven-week period from mid-March through the first week in May.

Large populations of ants interfere with parasites and reduce their performance. Honey is smeared under the lids of the cups to provide food for the wasps in transit.


Aphytis melinus

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It is difficult to detect the adult wasps after release as they disperse throughout the orchard. Aphytis feeds on and oviposits in immature scales, preferring virgin adult female scales. Despite the fact that all insectaries rear A. Unfortunately, we cannot provide individual solutions to specific pest problems. As indices of quality, we assessed the percentage of live parasitoids both sexes 1, 3, 7, 14, and 28 d after receipt of the shipment, shipment melinuss ratio, and the size of female wasps.

Parasites should be released by waiving cup around infested plants times. To reproduce, the female Aphytis lays an egg under a virgin female scale. Home Products Contact news Residential Commercial.

Aphytis (Aphytis melinus) – Biological Services, Australia

Release Aphytis at week intervals until scale levels are low. Ant control is also mmelinus where Aphytis are present because ants will disrupt the ability of the parasites to oviposit. Aphelinidae Beneficial insects Insects described in Chalcidoidea stubs.

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