You are here

wasps

Catalogue: Broadacre Field Crops DAFF QLD
Microplitis is the main vector of ascovirus and so plays a key role in increasing the percentage of caterpillars affected by this disease... High levels of ascovirus may lead to a decline in Microplitis wasp populations... small pale caterpillars in unusually exposed situations (e.g. on a leaf) that look as though they have been feeding in the same place for some time, making a window in the leaf, are probably infected with ascovirus because infected caterpillars can take a long time to die, ascovirus infection in the population can show up in crop scouting data over a series of checks as a number of small caterpillars (shorter than 8 mm) in the crop, with very few medium-large caterpillars coming through...
Related categories:
Catalogue: Broadacre Field Crops DAFF QLD
Microplitis is the main vector of ascovirus and so plays a key role in increasing the percentage of caterpillars affected by this disease... High levels of ascovirus may lead to a decline in Microplitis wasp populations... small pale caterpillars in unusually exposed situations (e.g. on a leaf) that look as though they have been feeding in the same place for some time, making a window in the leaf, are probably infected with ascovirus because infected caterpillars can take a long time to die, ascovirus infection in the population can show up in crop scouting data over a series of checks as a number of small caterpillars (shorter than 8 mm) in the crop, with very few medium-large caterpillars coming through...
Related categories:
Catalogue: Broadacre Field Crops DAFF QLD
Microplitis is the main vector of ascovirus and so plays a key role in increasing the percentage of caterpillars affected by this disease... High levels of ascovirus may lead to a decline in Microplitis wasp populations... small pale caterpillars in unusually exposed situations (e.g. on a leaf) that look as though they have been feeding in the same place for some time, making a window in the leaf, are probably infected with ascovirus because infected caterpillars can take a long time to die, ascovirus infection in the population can show up in crop scouting data over a series of checks as a number of small caterpillars (shorter than 8 mm) in the crop, with very few medium-large caterpillars coming through...
Related categories:
Catalogue: Broadacre Field Crops DAFF QLD
Can be mistaken for sorghum midge adults... The wasp lays eggs in midge larvae and wasp larvae feed directly on midge larvae... The parasite does not prevent the loss of the grain in which the midge larva was feeding, as the host midge larva is not killed until the pupal stage...
Related categories:
Catalogue: Broadacre Field Crops DAFF QLD
Can be mistaken for sorghum midge adults... The wasp lays eggs in midge larvae and wasp larvae feed directly on midge larvae... The parasite does not prevent the loss of the grain in which the midge larva was feeding, as the host midge larva is not killed until the pupal stage...
Related categories:
Catalogue: Broadacre Field Crops DAFF QLD
Can be mistaken for sorghum midge adults... The wasp lays eggs in midge larvae and wasp larvae feed directly on midge larvae... The parasite does not prevent the loss of the grain in which the midge larva was feeding, as the host midge larva is not killed until the pupal stage...
Related categories:
Catalogue: Broadacre Field Crops DAFF QLD
The female Microplitis wasp uses her ovipositor to insert an egg into the caterpillar's body... Adult Microplitis wasp laying eggs into a Helicoverpa larva Photo: M Shepard.. Taking into account the caterpillars infected with ascovirus and Microplitis - shown as responsible for killing up to 75% of the second and third instar Helicoverpa caterpillars in these unsprayed cotton crops - a significant contribution to the control of Helicoverpa ...
Related categories:
Catalogue: Broadacre Field Crops DAFF QLD
The female Microplitis wasp uses her ovipositor to insert an egg into the caterpillar's body... Adult Microplitis wasp laying eggs into a Helicoverpa larva Photo: M Shepard.. Taking into account the caterpillars infected with ascovirus and Microplitis - shown as responsible for killing up to 75% of the second and third instar Helicoverpa caterpillars in these unsprayed cotton crops - a significant contribution to the control of Helicoverpa ...
Related categories:
Catalogue: Broadacre Field Crops DAFF QLD
Each wasp larva spins a white silken cocoon that the adult wasp eventually emerges from.. Adult wasps will emerge from the white, silken cocoon... After about 12 days of internal feeding, wasp larvae emerge by burrowing through the skin of their host...
Related categories:
Catalogue: Broadacre Field Crops DAFF QLD
Each wasp larva spins a white silken cocoon that the adult wasp eventually emerges from.. Adult wasps will emerge from the white, silken cocoon... After about 12 days of internal feeding, wasp larvae emerge by burrowing through the skin of their host...
Related categories:

Pages