scholarly journals Parasitoids of leafrollers (LepidopteraTortricidae) from scrub vegetation near horticultural areas in Nelson

2015 ◽  
Vol 68 ◽  
pp. 193-196
Author(s):  
P.W. Shaw ◽  
D.R. Wallis
Keyword(s):  
Host Plants ◽  
Epiphyas Postvittana ◽  
Parasitoid Species ◽  
Lightbrown Apple Moth

Leafroller larvae and pupae were collected during timed searches in January and April 2013 from host plants at six scrub vegetation sites in two Nelson horticultural districts approximately 40 km apart The numbers of leafrollers and parasitoid species recovered were similar in both districts Most of the leafroller larvae collected were Epiphyas postvittana (Walker) (lightbrown apple moth LBAM) and most of these were found on gorse and broom In total 293 larvae and 11 pupae were reared successfully with 39 parasitism A wide diversity of parasitoids was recovered comprising 10 species from five families with Dolichogenidea tasmanica (Braconidae) the most common (80) The diversity of parasitoids and parasitism of leafrollers in unmanaged environments outside orchards may help to reduce leafroller pressure and the risk of fruit infestation in surrounding commercial orchards

scholarly journals A remarkable leaf mine induced by Tachygonus sp.n. (Coleoptera: Curculionidae: Curculioninae: Rhamphini) on Erythroxylum subsessile (Erythroxylaceae) with a description of the new species

2012 ◽  
Vol 72 (4) ◽  
pp. 949-953
Author(s):  
RF. Monteiro ◽  
MS. Nascimento ◽  
RM. Silva ◽  
HA. Hespenheide
Keyword(s):  
New Species ◽  
High Frequency ◽  
National Park ◽  
Host Plants ◽  
Close Association ◽  
Larval Instar ◽  
Original Data ◽  
Leaf Miner ◽  
Parasitoid Species ◽  
Great Abundance

In this study, we describe and present original data on the bionomics and ecology of Tachygonus erythroxyli Hespenheide, New Species, on Erythroxylum subsessile (Mart.). Thirty individuals of E. subsessile were analysed every two months, from October, 2006 to October, 2007 at the National Park of Restinga de Jurubatiba (PNRJ) Carapebus, Rio de Janeiro, Brazil. Females of T. erythroxyli lay their eggs singly on the upper surface of the host's leaves. The mine of T. erythroxyli is expanded with three bubbles, each one representing one larval instar. These mines occur throughout the year in at least half of the host plants and are markedly more abundant in summer. We obtained three parasitoid species, making a total of 53% of the rate of parasitism. Cirrospilus sp. (Eulophidae) was the most prevalent and represented 88% of the parasitoids. The great abundance of Tachygonus mines, their high frequency in their host plant, and local monophagy of this leaf miner weevil suggest a close association between T. erythroxyli and Erythroxylum subsessile.

Aphidiinae (Hymenoptera, Braconidae, Aphidiinae) from Slovenia, with descrip-tion of a new Aphidius species

Zootaxa ◽  
2012 ◽  
Vol 3456 (1) ◽  
pp. 36 ◽  
Author(s):  
KATARINA KOS ◽  
STANISLAV TRDAN ◽  
ANDJELJKO PETROVIĆ ◽  
PETR STARÝ ◽  
NICKOLAS G. KAVALLIERATOS ◽  
...  
Keyword(s):  
Host Plants ◽  
Deciduous Forest ◽  
Mediterranean Species ◽  
Parasitoid Species ◽  
Eastern Deciduous Forest ◽  
Aphid Parasitoid ◽  
Faunal Complexes ◽  
Far Eastern ◽  
First Time ◽  
Tamarix Gallica

Over the period 2006–2010, 40 species of primary parasitoids belonging to eleven genera were found and reared from 50 species of host aphids, from a total of 106 host plants collected from 62 localities all around Slovenia. Over 230 tritrophic associations have been reviewed, including four associations which are reported for the first time; Ephedrus plagiator/ Staticobium limonii/ Limonium angustifolium, Praon necans/ Staticobium limonii/ Limonium angustifolium, Aphidius sussi/Delphinobium sp./Aconitum maximum and Ephedrus persicae/Brachyunguis tamaricis/ Tamarix gallica. The parasitoid species from Slovenia have been grouped in seven faunal complexes according to their origin, e.g. 11 species from European deciduous forest, 3 species from Far Eastern deciduous forest, 20 species from Eurasian Steppes, 1 Mediterranean species, 2 species from Holarctic Forest Tundra, 2 species from Boreal Europe, and 1 Nearctic species. Also, a new aphid parasitoid species Aphidius staticobii sp.n. Tomanović and Petrović has been described from the association Staticobium limonii/ Limonium angustifolium.

scholarly journals Recent introduction and establishment of the leafroller parasitoid Trigonospila brevifacies (Hardy) (Diptera Tachinidae) in Nelson

2001 ◽  
Vol 54 ◽  
pp. 33-36
Author(s):  
P.W. Shaw ◽  
P. Lo ◽  
D.R. Wallis
Keyword(s):  
Fourth Instar ◽  
Biocontrol Agents ◽  
Research Centre ◽  
Epiphyas Postvittana ◽  
Natural Distribution ◽  
Laboratory Colony ◽  
Important Pest ◽  
Successful Establishment ◽  
Lightbrown Apple Moth ◽  
Natural Dispersal

To assist the natural distribution of the leafroller parasitoid Trigonospila brevifacies to horticultural areas in the Nelson region 181 T brevifacies pupae and 329 adults were released in 1999 at four sites adjacent to apple orchards near Motueka Release material was supplied from fieldcollected parasitoids in Hawkes Bay and a laboratory colony held at the Mt Albert Research Centre in Auckland Successful establishment of the parasitoid was recorded at all four sites and at a nearby nonrelease site in 2000 In 2000 319 of fourth instar and older larvae were parasitised by T brevifacies while in 2001 parasitism was 1166 Important pest tortricid species including Epiphyas postvittana (Walker) (lightbrown apple moth) were among the hosts The successful establishment of T brevifacies in Nelson and its further natural dispersal will increase the potential for the reduction of economically important leafroller species by biocontrol agents

Sign in / Sign up

Export Citation Format

Share Document