Harmful occurrence of Rosy rustic moth (Hydraecia micacea) (Noctuidae: Lepidoptera) on hop in the Czech Republic

The Rosy rustic moth (Hydraecia micacea) has been a pest of hop in Czech hop regions for a long time. It causes most severe damages in hop gardens infested by quackgrass (Elytrigia repens) on waterlogged areas. Larvae emerge from the second half of April to the middle of May. The sum of effective te...

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Main Authors: Josef Šedivý, Petr Born, Josef Vostřel
Format: Article
Language:English
Published: Czech Academy of Agricultural Sciences 2005-12-01
Series:Plant Protection Science
Subjects:
Online Access:https://pps.agriculturejournals.cz/artkey/pps-200504-0005_harmful-occurrence-of-rosy-rustic-moth-hydraecia-micacea-noctuidae-lepidoptera-on-hop-in-the-czech-republi.php
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author Josef Šedivý
Petr Born
Josef Vostřel
author_facet Josef Šedivý
Petr Born
Josef Vostřel
author_sort Josef Šedivý
collection DOAJ
description The Rosy rustic moth (Hydraecia micacea) has been a pest of hop in Czech hop regions for a long time. It causes most severe damages in hop gardens infested by quackgrass (Elytrigia repens) on waterlogged areas. Larvae emerge from the second half of April to the middle of May. The sum of effective temperatures (SET) necessary for hatching larvae has been determined to be 78.6C over a 4-year average. Young larvae first feed on leaves of quackgrass, and later move to hop plants where they feed inside the shoots and rootstocks. Occurrence and damage are most frequent at the edges of hop gardens and in places with anchorages between two hop gardens. The ichneumonid wasp Ichneumon sarcitorius and the fly Lidella thompsoni are the most common parasitoids of this pest. Numbers of males caught in pheromone traps were very low. More males were trapped near hop gardens typical for repeated harmful occurrence of the rosy rustic moth. Females trapped in a light trap from the second half of August to the last decade of September had already full-developed eggs in their ovaries.
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spelling doaj.art-57cf57ea8c584130abb571c530e862992023-02-23T04:03:30ZengCzech Academy of Agricultural SciencesPlant Protection Science1212-25801805-93412005-12-0141415015710.17221/2748-PPSpps-200504-0005Harmful occurrence of Rosy rustic moth (Hydraecia micacea) (Noctuidae: Lepidoptera) on hop in the Czech RepublicJosef Šedivý0Petr Born1Josef Vostřel2Department of Entomology, Division of Plant Health, Research Institute of Crop Production, Prague-Ruzyně, Czech RepublicState Phytosanitary Administration, Rakovník, Czech RepublicHop Research Institute, Co., Ltd., Žatec, Czech RepublicThe Rosy rustic moth (Hydraecia micacea) has been a pest of hop in Czech hop regions for a long time. It causes most severe damages in hop gardens infested by quackgrass (Elytrigia repens) on waterlogged areas. Larvae emerge from the second half of April to the middle of May. The sum of effective temperatures (SET) necessary for hatching larvae has been determined to be 78.6C over a 4-year average. Young larvae first feed on leaves of quackgrass, and later move to hop plants where they feed inside the shoots and rootstocks. Occurrence and damage are most frequent at the edges of hop gardens and in places with anchorages between two hop gardens. The ichneumonid wasp Ichneumon sarcitorius and the fly Lidella thompsoni are the most common parasitoids of this pest. Numbers of males caught in pheromone traps were very low. More males were trapped near hop gardens typical for repeated harmful occurrence of the rosy rustic moth. Females trapped in a light trap from the second half of August to the last decade of September had already full-developed eggs in their ovaries.https://pps.agriculturejournals.cz/artkey/pps-200504-0005_harmful-occurrence-of-rosy-rustic-moth-hydraecia-micacea-noctuidae-lepidoptera-on-hop-in-the-czech-republi.phphatching of caterpillarsweedsparasitoidsharmfulnessmonitoringantagonist
spellingShingle Josef Šedivý
Petr Born
Josef Vostřel
Harmful occurrence of Rosy rustic moth (Hydraecia micacea) (Noctuidae: Lepidoptera) on hop in the Czech Republic
Plant Protection Science
hatching of caterpillars
weeds
parasitoids
harmfulness
monitoring
antagonist
title Harmful occurrence of Rosy rustic moth (Hydraecia micacea) (Noctuidae: Lepidoptera) on hop in the Czech Republic
title_full Harmful occurrence of Rosy rustic moth (Hydraecia micacea) (Noctuidae: Lepidoptera) on hop in the Czech Republic
title_fullStr Harmful occurrence of Rosy rustic moth (Hydraecia micacea) (Noctuidae: Lepidoptera) on hop in the Czech Republic
title_full_unstemmed Harmful occurrence of Rosy rustic moth (Hydraecia micacea) (Noctuidae: Lepidoptera) on hop in the Czech Republic
title_short Harmful occurrence of Rosy rustic moth (Hydraecia micacea) (Noctuidae: Lepidoptera) on hop in the Czech Republic
title_sort harmful occurrence of rosy rustic moth hydraecia micacea noctuidae lepidoptera on hop in the czech republic
topic hatching of caterpillars
weeds
parasitoids
harmfulness
monitoring
antagonist
url https://pps.agriculturejournals.cz/artkey/pps-200504-0005_harmful-occurrence-of-rosy-rustic-moth-hydraecia-micacea-noctuidae-lepidoptera-on-hop-in-the-czech-republi.php
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AT josefvostrel harmfuloccurrenceofrosyrusticmothhydraeciamicaceanoctuidaelepidopteraonhopintheczechrepublic