scholarly journals Identification of Potential Host Plants of Sap-Sucking Insects (Hemiptera: Cicadellidae) Using Anchored Hybrid By-Catch Data

Insects ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 964
Author(s):  
Yanghui Cao ◽  
Christopher H. Dietrich
Keyword(s):  
Host Plants ◽  
Parenchyma Cell ◽  
Herbivorous Insect ◽  
Detection Rates ◽  
Potential Host ◽  
Plant Dna ◽  
Plant Associations ◽  
Anchored Hybrid Enrichment ◽  
Specific Association ◽  
By Catch

Reliable host plant records are available for only a small fraction of herbivorous insect species, despite their potential agricultural importance. Most available data on insect–plant associations have been obtained through field observations of occurrences of insects on particular plants. Molecular methods have more recently been used to identify potential host plants using DNA extracted from insects, but most prior studies using these methods have focused on chewing insects that ingest tissues expected to contain large quantities of plant DNA. Screening of Illumina data obtained from sap feeders of the hemipteran family Cicadellidae (leafhoppers) using anchored hybrid enrichment indicates that, despite feeding on plant fluids, these insects often contain detectable quantities of plant DNA. Although inclusion of probes for bacterial 16S in the original anchored hybrid probe kit yielded relatively high detection rates for chloroplast 16S, the Illumina short reads also, in some cases, included DNA for various plant barcode genes as “by-catch”. Detection rates were generally only slightly higher for Typhlocybinae, which feed preferentially on parenchyma cell contents, compared to other groups of leafhoppers that feed preferentially on phloem or xylem. These results indicate that next-generation sequencing provides a powerful tool to investigate the specific association between individual insect and plant species.

scholarly journals Root-associated entomopathogenic fungi manipulate host plants to attract herbivorous insects

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Belén Cotes ◽  
Gunda Thöming ◽  
Carol V. Amaya-Gómez ◽  
Ondřej Novák ◽  
Christian Nansen
Keyword(s):  
Host Plant ◽  
Entomopathogenic Fungi ◽  
Host Plants ◽  
Near Infrared ◽  
Delia Radicum ◽  
Host Plant Selection ◽  
Herbivorous Insects ◽  
Herbivorous Insect ◽  
Insect Performance ◽  
Leaf Reflectance

AbstractRoot-associated entomopathogenic fungi (R-AEF) indirectly influence herbivorous insect performance. However, host plant-R-AEF interactions and R-AEF as biological control agents have been studied independently and without much attention to the potential synergy between these functional traits. In this study, we evaluated behavioral responses of cabbage root flies [Delia radicum L. (Diptera: Anthomyiidae)] to a host plant (white cabbage cabbage Brassica oleracea var. capitata f. alba cv. Castello L.) with and without the R-AEF Metarhizium brunneum (Petch). We performed experiments on leaf reflectance, phytohormonal composition and host plant location behavior (behavioral processes that contribute to locating and selecting an adequate host plant in the environment). Compared to control host plants, R-AEF inoculation caused, on one hand, a decrease in reflectance of host plant leaves in the near-infrared portion of the radiometric spectrum and, on the other, an increase in the production of jasmonic, (+)-7-iso-jasmonoyl-l-isoleucine and salicylic acid in certain parts of the host plant. Under both greenhouse and field settings, landing and oviposition by cabbage root fly females were positively affected by R-AEF inoculation of host plants. The fungal-induced change in leaf reflectance may have altered visual cues used by the cabbage root flies in their host plant selection. This is the first study providing evidence for the hypothesis that R-AEF manipulate the suitability of their host plant to attract herbivorous insects.

Epitrix similarisandEpitrix cucumerisin Portugal: damage patterns in potato and suitability of potential host plants for reproduction

EPPO Bulletin ◽  
2013 ◽  
Vol 43 (2) ◽  
pp. 323-333 ◽  
Author(s):  
C. Boavida ◽  
N. Giltrap ◽  
A. G. S. Cuthbertson ◽  
P. Northing
Keyword(s):  
Host Plants ◽  
Potential Host

The potential for the use of herbarium specimens to determine the host plants of Ceutorhynchus (Coleoptera: Curculionidae)

2015 ◽  
Vol 148 (4) ◽  
pp. 493-498 ◽  
Author(s):  
David R. Gillespie ◽  
Beth I. Gillespie
Keyword(s):  
Biological Control ◽  
North America ◽  
Host Plant ◽  
Host Plants ◽  
Herbarium Specimens ◽  
Plant Associations ◽  
Control Programmes ◽  
Herbarium Collections ◽  
Developing Knowledge

AbstractThe host plants of native Ceutorhynchus Germar (Coleoptera: Curculionidae) species are poorly known in North America, and knowledge of these is essential for biological control programmes involving this genus of weevils. We hypothesised that weevil larva emergence holes on plant specimens in herbarium collections might reveal potential plant-insect associations, and help locate populations of hosts for non-target testing. We examined 1114 plant specimens in 16 genera and 60 species of Brassicaceae and found 70 specimens among 30 species that showed evidence of feeding injury and exit holes typical of Ceutorhynchus. We used this information to locate populations of two species of Ceutorhynchus. Herbarium collections may be useful tools for developing knowledge of host plant associations for species of Ceutorhynchus.

Ant-tended scale insects (Hemiptera: Coccidae: Myzolecanium) within lowland rain forest trees in Papua New Guinea

1993 ◽  
Vol 9 (1) ◽  
pp. 81-91 ◽  
Author(s):  
Penny J. Gullan ◽  
Ralf C. Buckley ◽  
Philip S. Ward
Keyword(s):  
Papua New Guinea ◽  
Rain Forest ◽  
Host Plants ◽  
New Guinea ◽  
Scale Insects ◽  
Forest Trees ◽  
Lowland Rain Forest ◽  
Plant Associations ◽  
Host Trees

ABSTRACTEight species of Myzolecanium Beccari (Hemiptera: Homoptera: Coccoidea: Coccidae) are reported from ant nests in stem cavities of living lowland rain forest trees in Papua New Guinea. The coccids are confined to this microhabitat but are associated with a taxonomically broad range of ants and host trees. Attendant ants belonged to six species in three genera and two subfamilies: Anonychomyrma Donisthorpe (Dolichoderinae), Crematogaster Lund (Myrmicinae) and Podomyrma F. Smith (Myrmicinae). Host plants belonged to at least five families and included both apparently specialized (with domatia) and unspecialized species. Saplings containing the nests of Anonychomyrma scrutator (F. Smith), Anonychomyrma sp. 1 and Podomyrma laevifrons F. Smith were dissected and the structure of nest chambers and their contents recorded. Only some chambers had entrance holes, but many were interconnected by transverse passages. The coccids were in low numbers and fairly evenly distributed between ant-occupied chambers. The characteristics of the Myzolecanium-ant association, the role of the coccids as trophobionts, and the nature of the plant associations are discussed. Taxonomically, new combinations are proposed by P. J. Gullan for three species previously placed in Cryptostigma Ferris: Myzolecanium endoeucalyptus (Qin & Gullan), M. magnetinsulae (Qin & Gullan), and M. robertsi (Williams & Watson).

scholarly journals Salvinia weevil, Cyrtobagous salviniae (Calder & Sands) (Insecta: Coleoptera: Curculionidae)

EDIS ◽  
2019 ◽  
Vol 2019 (4) ◽  
pp. 5
Author(s):  
Patricia Prade ◽  
Eutychus Kariuki ◽  
Adam Dale
Keyword(s):  
Host Plants ◽  
Biological Control Agent ◽  
Classical Biological Control ◽  
The United States ◽  
Control Agent ◽  
Ecosystem Functions ◽  
Herbivorous Insect ◽  
Salvinia Molesta ◽  
Invasive Aquatic Plants ◽  
Giant Salvinia

The salvinia weevil, Cyrtobagous salviniae (Calder & Sands) (Coleoptera: Curculionidae) (Figure 1), is a subaquatic (underwater) herbivorous insect native to Brazil (Calder and Sands 1985). This insect feeds on the invasive aquatic plants Salvinia molesta D. S. Mitchell and Salvinia minima (Baker). This insect is an effective classical biological control agent used in several countries to control the invasive giant salvinia, Salvinia molesta (D. S. Mitch). Feeding by Cyrtobagous salviniae larvae and adults kills its invasive host plants and restores recreational, agricultural, and ecosystem functions in aquatic systems. In the United states, the insect has been credited for controlling Salvinia minima in Florida (Jacono et al. 2001) and causing the decline of Salvinia molesta in Texas and Louisiana (Tipping et al. 2008).

scholarly journals The Cassidinae beetles of Longnan County (Jiangxi, China): overview and community composition

2019 ◽  
Vol 7 ◽  
Author(s):  
Peng Liu ◽  
Chengqing Liao ◽  
Jiasheng Xu ◽  
Charles L. Staines ◽  
Xiaohua Dai
Keyword(s):  
Host Plant ◽  
Community Composition ◽  
Host Plants ◽  
Biodiversity Hotspot ◽  
Jiangxi Province ◽  
Diversity Pattern ◽  
Plant Associations ◽  
Plant Families ◽  
Future Work ◽  
Five Tribes

There are few reports on the community composition and diversity pattern of the Cassidinae species of China. Compared to the neighbouring provinces of Guangdong, Fujian and Zhejiang, the Cassidinae richness in Jiangxi Province is under-reported. Longnan City, a biodiversity hotspot in Jiangxi Province, was chosen to obtain the first overview of the Cassidinae beetles. The sample coverage curves for the three sample sites reached an asymptote which indicated sampling was sufficient for data analysis. A total of eight tribes, 16 genera, 59 species and 1590 individuals of Cassidinae beetles were collected. Most belonged to the tribe Hispini (1121 individuals; 70.5%), followed by the tribe Cassidini (161 individuals; 10.13%) and the tribe Oncocephalini (159 individuals; 10.0%). The remainder (149 individuals) belonged to five tribes (Gonophorini, Basiprionotini, Callispini, Notosacanthini and Aspidimorphini). The tribes Notosacanthini, Aspidimorphini and Oncocephalini were newly recorded for Jiangxi Province. There were 14 families, 27 genera and 39 species of host plants of Cassidinae beetles in Longnan County. Cassidinae larvae mainly feed on the plant families Poaceae, Rosaceae, Lamiaceae and Rubiaceae. Most host-plant associations are new reords for the beetle species. This research, together with our planned future work in China, may help to explain the geographical distribution, diversity patterns and host plant associations of these beetles.

scholarly journals LEAF-BEETLES (COLEOPTERA, CHRYSOMELIDAE) OF THE PROTECTED AREAS OF VORONEZH CITY

2018 ◽  
Vol 8 (1) ◽  
pp. 24-29
Author(s):  
Михаил Каданцев ◽  
Mihail Kadancev
Keyword(s):  
Protected Areas ◽  
Host Plants ◽  
Green Space ◽  
Trophic Relations ◽  
Culture Studies ◽  
Leaf Beetles ◽  
Potential Host ◽  
Introduced Plants ◽  
Cultivated Species ◽  
Indigenous Fauna

From April to August 2017 the study was conducted the aim of which was intended to identify representatives of phytophagous family Chrysomelidae using trophic purpose, vegetative parts of plants growing in field collections of introduced and cultivated species. To identify trophic relations of beetles with the potential host plants to find the potentially dangerous pests when introducing new plants into culture. Studies of leaf beetles in the territories of Botanical gardens, parks and squares of Voronezh identified 15 species of Coleoptera, using trophic purpose, vegetative parts of green space. Six species of beetles from among the following indigenous fauna were first observed on the leaves of introduced plants.

Systematic revision of Thaumastocoris Kirkaldy (Hemiptera: Heteroptera: Thaumastocoridae)

Zootaxa ◽  
2011 ◽  
Vol 3121 (1) ◽  
pp. 1 ◽  
Author(s):  
ANN E. NOACK ◽  
GERASIMOS CASSIS ◽  
HARLEY A. ROSE
Keyword(s):  
New Species ◽  
Host Plant ◽  
Host Plants ◽  
Key To Species ◽  
Systematic Revision ◽  
Plant Associations ◽  
Distributional Range ◽  
Diagnostic Key

The genus Thaumastocoris is revised. Nine new species are described (T. busso, T. freomooreae, T. kalaako, T. majeri, T. nadeli, T. ohallorani, T. roy, T. safordi, and T. slateri) and the five previously described species are redescribed. A diagnostic key to species is provided, supported with illustrations of key character systems and maps depicting their distributional range. Host plants are tabulated, and biology and host plant associations are discussed.

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