Results 81 to 90 of about 27,601 (321)

Conservation challenges and opportunities for native apple (Malus) species in Canada

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Apple, one of the world's most widely cultivated and economically important fruit crops, has two wild relatives native to Canada. In this review, we describe the importance of these native apple species to Indigenous heritage and the current threats the species faces due to pests, diseases, and habitat loss.
Terrell T. Roulston   +13 more
wiley   +1 more source

Whitebacked Planthopper Outbreak in Bangladesh

open access: yes, 1977
This article 'Whitebacked Planthopper Outbreak in Bangladesh' appeared in the International Rice Research Newsletter series, created by the International Rice Research Institute (IRRI). The primary objective of this publication was to expedite communication among scientists concerned with the development of improved technology for rice and for rice ...
Alam, S., Alam, M. B.
openaire   +1 more source

Maculergithus, a new subgenus in Gergithus Schumacher, 1915 with two new species from northern Vietnam (Hemiptera: Fulgoromorpha: Issidae)

open access: yesEuropean Journal of Taxonomy, 2016
The new subgenus Maculergithus subgen. nov. is established to accommodate two new species of the genus Gergithus Stål, 1870 (Issinae, Hemisphaeriini): G. (Maculergithus) tamdao subgen. et sp. nov. and G. (Maculergithus) luteomaculatus subgen. et sp. nov.
Jérôme Constant, Hong-Thai Pham
doaj   +1 more source

Attack Level of Brown Planthopper Nilaparvata lugens Stal (Hemiptera: Delphacidae) on Varieties of Rice from Pasaman in Greenhouse

open access: yesJurnal Proteksi Tanaman, 2021
Brown planthopper (BPH) is a major pest on rice plants that can cause hopperburn and crop failure. The study aimed to determine the level of BPH attack on several local rice varieties in the Pasaman Regency.
Eva Zulaikha   +2 more
doaj   +1 more source

Application of multivariate analysis to electrical penetration graphs using manual and automate waveform recognization from the planthopper Peregrinus maidis feeding on susceptible and resistant maize [PDF]

open access: yes, 2004
The stylet penetration activities of Peregrinus maidis (Ashmead) (Homoptera: Delphacidae), vector of Maize mosaic virus (MMV) and Maize stripe virus (MStV) were studied by electrical penetration graphs (DC-EPG) on resistant and susceptible maize inbred ...
Buduca, Cécile   +5 more
core  

The continuing significance of chiral agrochemicals

open access: yesPest Management Science, Volume 81, Issue 4, Page 1697-1716, April 2025.
In the time frame 2018–2023, around 43% of the 35 chiral agrochemicals introduced to the market (herbicides, fungicides, insecticides, acaricides, and nematicides) contain one or more stereogenic centers in the molecule, and almost 69% of them have been marketed as racemic mixtures of enantiomers or stereoisomers.
Peter Jeschke
wiley   +1 more source

Flight Capabilities of the Brown Planthopper

open access: yes, 1979
This article 'Flight Capabilities of the Brown Planthopper' appeared in the International Rice Research Newsletter series, created by the International Rice Research Institute (IRRI). The primary objective of this publication was to expedite communication among scientists concerned with the development of improved technology for rice and for rice based
Cooter, R. J.   +2 more
openaire   +1 more source

Review of the Oriental lantern-fly genus Egregia Chew Kea Foo, Porion & Audibert, 2011, with a new species from Sumatra (Hemiptera: Fulgoromorpha: Fulgoridae)

open access: yesEuropean Journal of Taxonomy, 2014
Datua brevirostris Lallemand, 1959 is transferred to the genus Egregia Chew Kea Foo, Porion & Audibert, 2011 in the Aphaeninae and the new combination Egregia brevirostris (Lallemand, 1959) comb. nov. is proposed.
Jérôme Constant
doaj   +1 more source

High migratory potential of fall armyworm in West Africa despite stable temperatures and widely available year‐round habitats

open access: yesInsect Science, EarlyView.
Despite the minimal annual temperature variation and the widespread distribution of potential year‐round habitats in Ghana, the migratory potential of the local fall armyworm remains strong and is indistinguishable from that of the fall armyworm in China, which undergo seasonal migration.
Fan‐Qi Gao   +5 more
wiley   +1 more source

Pest categorisation of non‐EU Cicadomorpha vectors of Xylella spp.

open access: yesEFSA Journal, 2019
The Panel on Plant Health performed a group pest categorisation of non‐EU Cicadomorpha vectors of Xylella spp. known to be associated with plant diseases.
EFSA Panel on Plant Health (PLH)   +22 more
doaj   +1 more source

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