Abundances and Diversity of Leaf-Mining Insects on Three Oak Host Species: Effects of Host-Plant Phenology and Nitrogen Content of Leaves

Oikos ◽  
1981 ◽  
Vol 37 (2) ◽  
pp. 238 ◽  
Author(s):  
Stanley H. Faeth ◽  
Susan Mopper ◽  
Daniel Simberloff
Keyword(s):  
Nitrogen Content ◽  
Host Plant ◽  
Host Species ◽  
Plant Phenology ◽  
Species Effects ◽  
Leaf Mining

Maternal effects in an insect herbivore as a mechanism to adapt to host plant phenology

2010 ◽  
Vol 24 (5) ◽  
pp. 1103-1109 ◽  
Author(s):  
Margriet van Asch ◽  
Riita Julkunen-Tiito ◽  
Marcel E. Visser
Keyword(s):  
Host Plant ◽  
Maternal Effects ◽  
Plant Phenology ◽  
Insect Herbivore

Host plant phenology, insect outbreaks and herbivore communities – The importance of timing

2019 ◽  
Vol 89 (3) ◽  
pp. 829-841
Author(s):  
Adam Ekholm ◽  
Ayco J. M. Tack ◽  
Pertti Pulkkinen ◽  
Tomas Roslin
Keyword(s):  
Host Plant ◽  
Plant Phenology ◽  
Insect Outbreaks ◽  
Herbivore Communities

scholarly journals Effects of Citrus Overwintering Predators, Host Plant Phenology and Environmental Variables on Aphid Infestation Dynamics in Clementine Citrus

2019 ◽  
Vol 112 (4) ◽  
pp. 1587-1597 ◽  
Author(s):  
Juan Pedro Raul Bouvet ◽  
Alberto Urbaneja ◽  
César Monzó
Keyword(s):  
Biological Control ◽  
Host Plant ◽  
Natural Enemies ◽  
Environmental Variables ◽  
Aphis Gossypii ◽  
Colony Growth ◽  
Plant Phenology ◽  
Conservation Strategies ◽  
Phenological Stages ◽  
Aphid Infestation

Abstract The Spirea citrus aphid, Aphis spiraecola Patch, and the cotton aphid, Aphis gossypii Glover (Hemiptera: Aphididae), are key pests of clementine mandarines in the Mediterranean basin. Severity of aphid infestations is determined by environmental variables, host plant phenology patterns, and the biological control exerted by their associated natural enemies. However, there is no information about the role these limiting and regulating factors play. Aphid densities, citrus phenology, and associated predators that overwinter in the crop were monitored weekly throughout two flush growth periods (February to July) in four clementine mandarin groves; relationships between these parameters and environmental variables (temperature and precipitation) were studied. Our results show exponential increase in aphid infestation levels to coincide with citrus phenological stages B3 and B4; shoots offer more space and nutritional resources for colony growth at these stages. Duration of these phenological stages, which was mediated by mean temperature, seems to importantly determine the severity of aphid infestations in the groves. Among those studied, the micro-coccinellids, mostly Scymnus species, were the only group of predators with the ability to efficiently regulate aphid populations. These natural enemies had the highest temporal and spatial demographic stability. Aphid regulation success was only achieved through early presence of natural enemies in the grove, at the aphid colonization phase. Our results suggest that conservation strategies aimed at preserving and enhancing Scymnus sp. populations may make an important contribution to the future success of the biological control of these key citrus pests.

The soft scale (Coccidae) associates of Malaysian ant-plants

1998 ◽  
Vol 14 (4) ◽  
pp. 427-443 ◽  
Author(s):  
Hans-Peter Heckroth ◽  
Brigitte Fiala ◽  
Penny J. Gullan ◽  
Azarae HJ. Idris ◽  
Ulrich Maschwitz
Keyword(s):  
Host Plant ◽  
Host Species ◽  
Peninsular Malaysia ◽  
Scale Insects ◽  
Soft Scale ◽  
Genus Level ◽  
The Family ◽  
Single Host ◽  
Taxonomic Research ◽  
Host Plant Specificity

Myrmecophytic species of the Paleotropical plant genus Macaranga (Euphorbiaceae) have hollow stems that are almost always occupied by ants of the genus Crematogaster and scale insects of the family Coccidae (Hemiptera: Coccoidea). The coccids have a cryptic endophytic lifestyle and are confined to this microhabitat. They are much more diverse than previously recognised. First data are presented on the diversity, prevalence, specificity and distribution of the coccids associated with myrmecophytic Macaranga species. Twenty-two species of Coccidae in total, including 15 previously unknown from Macaranga, were discovered from 19 species of Macaranga in Peninsular Malaysia and Borneo. The original describers tentatively assigned the known coccid species to Coccus (Coccinae) but the Macaranga coccids still require taxonomic research to establish their correct placing. The coccids varied in their host-plant specificity from species that occurred in most of the sampled Macaranga to one species that was found almost exclusively only on a single host species. In addition to their occurrence on Macaranga, only three species, C. macarangae and C. secretus and morphospecies C. 214 were found on rare occasions in the stem interior of a few other myrmecophytes and in a non-myrmecophytic liana, but did not regularly colonise these plants. Most of the coccids can be regarded as highly specific at the plant genus level.

Adult behavior of an ambrosia gall midgeIlliciomyia yukawai(Diptera: Cecidomyiidae) and synchronization between its emergence and host plant phenology

2013 ◽  
pp. n/a-n/a ◽  
Author(s):  
Junichi Yukawa ◽  
Kohjin Nakagawa ◽  
Tetsumi Saigou ◽  
Takahiro Awa ◽  
Takeshi Fukuda ◽  
...  
Keyword(s):  
Host Plant ◽  
Plant Phenology ◽  
Adult Behavior

Four new species of Gracillariidae (Lepidoptera) from China and Japan, and description of the pupal morphology of the genera Corythoxestis, Eumetriochroa, Guttigera, and Metriochroa

Zootaxa ◽  
2013 ◽  
Vol 3619 (2) ◽  
pp. 101-129 ◽  
Author(s):  
SHIGEKI KOBAYASHI ◽  
GUO-HUA HUANG ◽  
AKIHIRO NAKAMURA ◽  
TOSHIYA HIROWATARI
Keyword(s):  
Life History ◽  
New Species ◽  
Host Plant ◽  
Host Plants ◽  
Female Adult ◽  
New Host ◽  
Leaf Mining ◽  
Fatsia Japonica ◽  
China And Japan ◽  
First Time

Four new leaf mining Oecophyllembiinae (Gracillariidae) species are described from Chinaand Japan: Metriochroa sym-plocosella sp. nov. (host plants: Symplocos anomala, S. sumuntia, Symplocaceae) from China, Guttigera schefflerella sp. nov. (host plant: Schefflera octophylla, Araliaceae), Eumetriochroa araliella sp. nov. (host plants: Dendropanax trifidus, Evodiopanax innovans, Eleutherococcus sciadophylloides and Fatsia japonica, Araliaceae) and Corythoxestis tricalysiel-la sp. nov. (host plant: Tricalysia dubia, Rubiaceae) from Japan. Corythoxestis sunosei (Kumata, 1998) is recorded from new host plants: Adina pilulifera and Mussaenda parviflora, Rubiaceae, from Japan. The female adult and pupal morphol-ogies, life history and host plant of the genus Guttigera are described for the first time. Pupae of seven species of four genera: Corythoxestis, Eumetriochroa, Guttigera, and Metriochroa, are described for the first time. We provide morpho-logical diagnostic differences between species and genera of Oecophyllembiinae and Phyllocnistis. Our preliminary data suggest that Oecophyllembiinae species have three valuable pupal diagnostic characters: 1) cocoon cutter with unique lat-eral processes or setae on the clypeus, 2) tergal spines with only a pair of dorsal setae, and 3) cremaster with more than two pairs of caudal processes, while Phyllocnistis species possess 1) cocoon cutter without lateral processes or setae on clypeus, 2) tergal spines with a pair of dorsal setae and dorsal hooks, and 3) cremaster with only a pair of caudal processes.

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