And now - humpbacks!..

Well, what can you do, it's not for nothing that they say - "they knock out a wedge with a wedge".
For humpbacks, too, who can nibut in extreme cases zavety
Here I am interested in such a question, but were there any positive, without significant "side effects" examples of biological struggle with the help of imported natural enemies?

Like in Australia with prickly pear with the help of some butterflies fought quite successfully?

IMHO, any introduction of an imported animal or plant species is always fraught. You can't foresee everything.

Cases of importation of natural enemies together with quarantine species always occur

It seems that against the blood aphid some rider was brought either to the Black Sea coast of the Caucasus, or to the Crimea. as if everything had worked out.

in addition to tearing off the heads of ants, there are humpbacks-killer bees (bee-killing flies)
in the photo, a poor doomed bee...

Good flies.
http://www.floranimal.ru/pages/animal/g/4893.html (for graphic lovers)

Humpbacks do not lay their eggs on adult bees, but on larvae in combs.

Cases of importation of natural enemies together with quarantine species always take place.

From now on, please go into more detail

I found something about blood aphids, here is a brief description of the chalcida:
http://www.cultinfo.ru/fulltext/1/001/008/082/433.htm
which was used against this aphid. I even remembered reading about it a long time ago in pest control books. It was there, in my opinion, the "crowning example" in life. methods of struggle. But I didn't find out about prickly pear and butterfly.
Well, it remains only to wish the nature of Samerica (except for the unfortunate ants, of course) and local arthropod lovers "not to notice changes" after the launch of humpbacks...

Humpbacks do not lay their eggs on adult bees, but on larvae in combs.

now a lot is changing in the facts about the lifestyle of parasites, and especially humpbacks.
For example, Hypocera (mentioned by Guest D) is no longer a parasite of bees, but an inhabitant of garbage in bee nests. the photos that I posted really belong to the parasites of the genus Melaloncha, namely the imago of bees. As proof, a few quotes from the site of Brian Brown
http://www.phorid.net/
" The way of life of most species is unknown, but all are believed to be parasitoids of bees, with the known hosts being stingless bees, bumble bees and the introduced honey bee, Apis mellifera. Female flies attack the bees either while they are foraging on flowers, or near their nests. We have recently discovered that the flies use a variety of methods to attack their hosts, but many of them curl their ovipositors under the abdomen, up between the legs so that the point of the stylet is extending beneath the head. The fly then rushes forward towards a bee and jabs her ovipositor into the bee's body, injecting a single egg. This happens extremely quickly and is difficult to observe, but it appears that the eggs are laid in the head or the thorax. Some species attack the bees while they (the flies) are flying- these species usually lay eggs in the host abdomen. In either case, the fly larva hatches from the egg and consumes the internal contents of the bee, eventually killing it." и еще "Some of the larger Melaloncha were attracted to the honey bees, however, and we have some interesting new host records. The flies and bees were so numerous that at times I could conveniently watch oviposition attempts taking place on the bees swarming on my hands." By the way, the yatseklades of different types of melalonkh are sharpened at different angles and sizes for laying under different sclerites of bees...

Izhevskii S. S. Realii i perspektivy biologicheskogo kontrolya chislennosti infazionnykh vrediteley rasteniy [Realities and prospects of biological control of the number of invasive plant pests]

Izhevskii S. S. Realii i perspektivy biologicheskogo kontrolya chislennosti invazionnykh vrediteley rasteniy [Realities and prospects of biological control of the number of invasive plant pests]. Zashchita i karantin rasteniy 2004 - 10
The article contains two tables. Adventitious herbivorous insects on the territory of Russia and invasive herbivorous insects in greenhouses of Russia.

Oh, that's what you're talking about!:)

And I thought about a random delivery along with delivery CO.

Well, Melaloncha is not found here, I just wrote about Hypocera. About how they suddenly moved away from parasitism for the first time I heard from you. It's hard to believe - would you trade a juicy steak for horns and hooves? If this really happened, then why didn't beekeepers stop worrying about foridosis?
About Melaloncha, I do not argue, this is quite possible. For example, the sarcophagid Senotainia tricuspis also infects the imago of bees, although it is viviparous, so it immediately introduces larvae

I have another idea. Maybe, of course, naive, but still... If a group (in this case, a family) is so heterogeneous poecologically that it contains both detritophages and parasites, then the latter are unlikely to be so specialized - due to the almost obvious evolutionary youth of their parasitism.

PS. More about konopid forgot

Well, Melaloncha is not found here, I just wrote about Hypocera. About how they suddenly moved away from parasitism for the first time I heard from you. It's hard to believe - would you trade a juicy steak for horns and hooves? If this really happened, then why didn't beekeepers stop worrying about foridosis?

I answer about Hypocera. I don't know about beekeepers and what kind of phoridosis they are fighting (it seems that this is not the case), but the Hypocera itself has nothing to do with bees (see B. Brown, M. Buck: Review of the genus Hypocera Lioy (Diptera, Phoridae). Entomologica Scandinavica, 1998, 29: 47-56), various rotting remains (fungi, slugs) were indicated as a substrate, and the excretion of ermine moth caterpillars Yponomeuta sp. was also observed.

This post was edited by Proctos - 04/11/2006 01: 33