Phytophagous insect fauna tracks host plant responses to exotic grass invasion

Oecologia ◽  
2010 ◽  
Vol 165 (4) ◽  
pp. 1051-1062 ◽  
Author(s):  
Mário Almeida-Neto ◽  
Paulo I. Prado ◽  
Thomas M. Lewinsohn
Keyword(s):  
Host Plant ◽  
Plant Responses ◽  
Phytophagous Insect ◽  
Insect Fauna ◽  
Exotic Grass ◽  
Grass Invasion

Host plant response of Eumusa and Australimusa bananas (Musa spp.) to migratory endoparasitic and root-knot nematodes

Nematology ◽  
2000 ◽  
Vol 2 (8) ◽  
pp. 907-916 ◽  
Author(s):  
Ngo Thi Xuyen ◽  
Raf Verlinden ◽  
Ruth Stoffelen ◽  
Dirk De Waele ◽  
Rony Swennen
Keyword(s):  
Host Plant ◽  
Papua New Guinea ◽  
Loamy Sand ◽  
Plant Responses ◽  
Radopholus Similis ◽  
Root Knot Nematodes ◽  
Musa Spp ◽  
Pratylenchus Coffeae ◽  
Meloidogyne Spp

AbstractTwenty-five banana varieties of section Eumusa (AA-group) and seven of the section Australimusa (Fe'i-group) from Papua New Guinea were evaluated for resistance to Radopholus similis, Pratylenchus coffeae and Meloidogyne spp. The host plant responses were compared with the susceptible reference cvs Grande Naine and Cavendish 901. In vitro propagated plants were transferred to the glasshouse in loamy sand and inoculated with approximately 1000 migratory endoparasitic nematodes at 4 weeks after planting. Reproduction of R. similis and P.coffeae in the roots was determined at 8 or 10 weeks, respectively, after inoculation. Reproduction of Meloidogyne spp. was determined 8 weeks after inoculation with 3300 to 5000 eggs. No resistance to R. similis was found in the diploid varieties. The Fe'i variety Rimina and possibly Menei were resistant to R. similis. All varieties tested were susceptible to P.coffeae and Meloidogyne spp. Tests de résistance de bananiers Eumusa et Australimusa (Musa spp.) envers les nématodes endoparasites migrateurs et galligènes - Vingt-cinq variétés de bananier de la section Eumusa (groupe AA) et sept de la section Australimusa (group Fe'i) provenant de Papouasie-Nouvelle Guinée ont été testées pour leur résistance envers Radopholus similis, Pratylenchus coffeae et Meloidogyne spp. Les résponses de ces variétés ont été comparées à celles des cultivars sensibles de référence Grande Naine et Cavendish 901. Des vitroplants ont été mis en place en serre sur un sol argilo-sableux et inoculés 4 semaines après plantation avec environ 1000 R. similis ou P.coffeae dont la reproduction a été déterminée 8 et 10 semaines, respectivement, après inoculation. La reproduction de Meloidogyne spp. l'a été 8 semaines après inoculation avec 3300 à 5000 oeufs. Aucune résistance à R. similis n'a été observée chez les variétés diploïdes. Les variétés du groupe Fe'i Rimina et Menei se sont montrées résistantes à R. similis, avec un certain doute dans le cas de la dernière. Toutes les variétés testées sont sensibles à P.coffeae et Meloidogyne spp.

Russian Thistle as an Alternate Host to Economically Important Insects

Weed Science ◽  
1968 ◽  
Vol 16 (1) ◽  
pp. 102-103 ◽  
Author(s):  
Richard D. Goeden
Keyword(s):  
Southern California ◽  
Phytophagous Insect ◽  
Alternate Host ◽  
Insect Fauna ◽  
Salsola Kali

A survey of the phytophagous insect fauna of Russian thistle (Salsola kali L., var. tenuifolia Tausch) showed that this weed serves as an alternate feeding and/or breeding host to a number of economically important insects in southern California.

scholarly journals Species of Phytophagous Insects Associated with Strawberries in Latvia

2013 ◽  
Vol 67 (2) ◽  
pp. 124-129
Author(s):  
Valentīna Petrova ◽  
Līga Jankevica ◽  
Ineta Samsone
Keyword(s):  
Sampling Methods ◽  
Insect Species ◽  
Phytophagous Insects ◽  
Phytophagous Insect ◽  
Pitfall Trapping ◽  
Insect Fauna ◽  
Number Of Species ◽  
Leaf Sampling

The aim of the present study was to describe the phytophagous insect fauna of strawberries in Latvia. This study was carried out in 2000-2004 on strawberry plantations in Tukums, Rîga, Dobele, and Limbaþi districts. Insects were collected from strawberry fields by pitfall trapping, sweep netting and leaf sampling methods. A total of 137 insect species belonging to seven orders and 41 families were identified to species. Of the phytophagous insects, the order Orthoptera was represented by one species, other orders by a larger number of species: Hymenoptera (3), Diptera (16), Lepidoptera (20), Thysanoptera (21), Hemiptera (39), and Coleoptera (37). Of the recorded insects, 48 species have a status of general strawberry pests.

The Role of Host Selection in the Ecology of Phytophagous Insects

1953 ◽  
Vol 85 (8) ◽  
pp. 276-282 ◽  
Author(s):  
A. J. Thorsteinson
Keyword(s):  
Host Plant ◽  
Host Selection ◽  
Host Plants ◽  
Host Plant Selection ◽  
Phytophagous Insects ◽  
Phytophagous Insect ◽  
Ecological Significance ◽  
Plant Selection ◽  
Suitable Host

It is a commonplace entomological observation that each phytophagous insect is restricted in its feeding to a small fraction only of the plant species that grow in any area. This phenomenon is generally referred to as “host selection”. The ecological significance of host plant selection among insects is manifest principally in an effect on the geographical distribution of insect species since phytophagous insects can occur only where suitable host plants are available.

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