scholarly journals Foraging for Patchily-Distributed Leaf-Miners by the Parasitoid, Dapsilarthra rufiventris (Hymenoptera : Braconidae) : IV. Analyses of Sounds Emitted by a Feeding Host

1988 ◽  
Vol 23 (2) ◽  
pp. 209-211 ◽  
Author(s):  
Tuyosi SUGIMOTO ◽  
Toshihide ICHIKAWA ◽  
Makoto MITOMI ◽  
Yasuyuki SAKURATANI
Keyword(s):  
Hydrobiologia ◽  
2021 ◽  
Vol 848 (6) ◽  
pp. 1311-1331
Author(s):  
Vivian de Mello Cionek ◽  
Fábio Nascimento Oliveira Fogaça ◽  
Timothy Peter Moulton ◽  
Laryssa Helena Ribeiro Pazianoto ◽  
Guilherme Okuda Landgraf ◽  
...  

1936 ◽  
Vol 27 (3) ◽  
pp. 477-491 ◽  
Author(s):  
Ch. Ferrière

The coffee leaf-miners of the genus Leucoptera, Hübner, are serious pests of coffee wherever it is cultivated and they have often caused great anxiety to planters in many parts of the world. Leucoptera coffeella, Guér., is known from the West Indies, Central and South America, Central Africa, Madagascar, Réunion and Ceylon. Another species, L. daricella, Meyr., seems to be responsible for still more damage in Africa.


2010 ◽  
Vol 277 (1692) ◽  
pp. 2311-2319 ◽  
Author(s):  
Wilfried Kaiser ◽  
Elisabeth Huguet ◽  
Jérôme Casas ◽  
Céline Commin ◽  
David Giron

Zootaxa ◽  
2017 ◽  
Vol 4272 (1) ◽  
pp. 1 ◽  
Author(s):  
JONAS R. STONIS ◽  
ANDRIUS REMEIKIS ◽  
ARŪNAS DIŠKUS ◽  
NICK MEGORAN

The paper treats fifteen species of leaf-mining pygmy moths (Insecta, Lepidoptera, Nepticulidae) discovered in the Neotropics (British Virgin Islands, Belize, Costa Rica, Venezuela, and Ecuador), and Ando-Patagonian region (Argentina and Chile). Except for two species, all belong to Stigmella Schrank. Twelve species are new, and are named and described in the current paper: Stigmella apicibrunella Diškus & Stonis, sp. nov.; S. decora Diškus & Stonis, sp. nov.; S. unicaudata Remeikis & Stonis, sp. nov.; S. sanmartini Remeikis & Stonis, sp. nov.; S. patula Remeikis & Stonis, sp. nov.; S. torosa Remeikis & Stonis, sp. nov.; S. monstrata Remeikis & Stonis, sp. nov.; S. huahumi Remeikis & Stonis, sp. nov.; S. venezuelica Remeikis & Stonis, sp. nov.; S. virginica Remeikis & Stonis, sp. nov.; Fomoria miranda Diškus & Stonis, sp. nov.; and Hesperolyra robinsoni Stonis, sp. n. Newly discovered variation of male genitalia of the Andean Stigmella rudis Puplesis & Robinson, 2000 is briefly discussed, and the formerly poorly understood Stigmella hylomaga (Meyrick, 1931) is redescribed and documented with photographs for the first time. We also present more photographs and add some addtional information on Stigmella gallicola van Nieukerken & Nishida, a recently described gall-maker from Costa Rica.The paper also provides new host-plant data: some of the described (or redescribed) species are reported for the first time as leaf-miners on plants belonging to Euphorbiaceae (Acalypha padifolia Kunth), Salicaceae (Azara microphylla Hook. f.), Fabaceae (Inga spectabilis (Vahl) Willd. or I. edulis Mart.), Rhamnaceae (Colletia spinosissima J. F. Gmel.), Geraniaceae or Vivianiaceae (Rhynchotheca spinosa Ruiz & Pav.), and Asteraceae (Mutisia decurrens Cav.). All species treated in the paper are illustrated with photographs of the adults and genitalia, a distribution map, and also photographs of the leaf-mines and host plants when available.


Author(s):  
Hillary M. O. Otieno

Orange production provides both nutritional and financial benefits to farmers across Africa. However, these farmers do not realize the full benefits due to low yields caused by poor agronomic practices currently applied in the region. This guide, therefore, highlights key practices that farmers need to adopt for better yields. Farmers should always follow the best practices right from the selection of a variety to harvesting practices for high yield and better quality fruits to be achieved. Proper land preparation helps in early weed control and improves water infiltration and growth of roots. Weeds should always be kept below economic thresholds to ensure efficiencies in the use of water and nutrient. Like other plants, oranges require proper nutrition for growth and development of big fruits. Both manure and inorganic fertilizers should be applied depending on the availability and cost. Soil analysis helps in determining the rates of application. During production, farmers should scout for pests such as aphids, false codling moth, whiteflies, leaf miners, thrips, fruit fly and common spiral nematode and diseases like Pseudocercospora leaf and fruit spot, Phytophthora spp. and orange fruit scab which are common in the area. These pests cause significant yield losses if not timely controlled. When ready, harvesting of fruits should be careful and gentle without causing injuries.


2020 ◽  
Vol 100 (3) ◽  
pp. 301-306
Author(s):  
A. V. Selikhovkin ◽  
A. A. Egorov ◽  
D. D. Sitnikova ◽  
N. A. Mamaev
Keyword(s):  

1988 ◽  
Vol 13 (2) ◽  
pp. 131-142 ◽  
Author(s):  
THOMAS L. BULTMAN ◽  
STANLEY H. FAETH
Keyword(s):  

2005 ◽  
Vol 272 (1568) ◽  
pp. 1083-1090 ◽  
Author(s):  
Vojtech Novotny ◽  
Yves Basset

Studies of host specificity in tropical insect herbivores are evolving from a focus on insect distribution data obtained by canopy fogging and other mass collecting methods, to a focus on obtaining data on insect rearing and experimentally verified feeding patterns. We review this transition and identify persisting methodological problems. Replicated quantitative surveys of plant–herbivore food webs, based on sampling efforts of an order of magnitude greater than is customary at present, may be cost-effectively achieved by small research teams supported by local assistants. Survey designs that separate historical and ecological determinants of host specificity by studying herbivores feeding on the same plant species exposed to different environmental or experimental conditions are rare. Further, we advocate the use of host‐specificity measures based on plant phylogeny. Existing data suggest that a minority of species in herbivore communities feed on a single plant species when alternative congeneric hosts are available. Thus, host plant range limits tend to coincide with those of plant genera, rather than species or suprageneric taxa. Host specificity among tropical herbivore guilds decreases in the sequence: granivores>leaf-miners>fructivores>leaf-chewers=sap-suckers>xylophages>root-feeders, thus paralleling patterns observed in temperate forests. Differences in host specificity between temperate and tropical forests are difficult to assess since data on tropical herbivores originate from recent field studies, whereas their temperate counterparts derive from regional host species lists, assembled over many years. No major increase in host specificity from temperate to tropical communities is evident. This conclusion, together with the recent downward revisions of extremely high estimates of tropical species richness, suggest that tropical ecosystems may not be as biodiverse as previously thought.


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