Results 11 to 20 of about 1,466 (243)

Study on the transmission of coconut Lethal Yellowing in Ghana [PDF]

open access: yesOléagineux, Corps gras, Lipides, 2009
Research on the Cape Saint Paul Wilt Disease (CSPWD) vector in Ghana began from 1990 (1990-1997 ; 2002-2004) and did not give convincing results. From July 2005, new test standards were applied : shading, daily collections and releasing of insects at the
Philippe René   +7 more
doaj   +3 more sources

THE PROBABLE ORIGIN OF LETHAL YELLOWING AND ITS CO-IDENTITY WITH OTHER LETHAL DISEASE OF COCONUT

open access: yesCORD, 1998
The working hypothesis is put forward that Lethal Yellowing (LY) disease of coconut originated in Southeast Asia, where the disease is now endemic due to the prevalence of locally resistant to moderately resistant varieties.
L. Chiarappa
doaj   +3 more sources

Preliminary results on epidemiology of Coconut Lethal Yellowing in Ghana [PDF]

open access: yesOléagineux, Corps gras, Lipides, 2009
Epidemiological studies are of major importance in understanding the determinants of plant diseases in order to control the risks of their spreading. A research programme on the epidemiology of coconut lethal yellowing, or Cape Saint Paul Wilt Disease ...
Bonnot François   +4 more
doaj   +3 more sources

Review of Coconut “Lethal Yellowing” type diseases Diversity, variability and diagnosis [PDF]

open access: yesOléagineux, Corps gras, Lipides, 2009
Coconut palms (Cocos nucifera L.) can be affected by several types of Lethal Yellowing (LY) diseases worldwide. Some of the syndromes are caused by phytoplasmas, small bacteria that are impossible to detect by light microscopy.
Dollet Michel   +2 more
doaj   +3 more sources

Genetic Variability of Haplaxius crudus, Based on the 5′ Region of the Cytochrome c Oxidase Subunit I Gene, Sheds Light on Epidemiology of Palm Lethal Decline Phytoplasmas

open access: yesPhytoFrontiers, 2021
Haplaxius crudus is an economically important species of cixiid planthopper that is widespread and abundant throughout the Caribbean basin. It is the vector of lethal yellowing and putative vector of lethal bronzing, both phytoplasma diseases of palm ...
Alessandra R. Humphries   +9 more
doaj   +1 more source

American Palm Cixiid, Myndus crudus Van Duzee (Insecta: Hemiptera: Auchenorrhyncha: Fulgoroidea: Cixiidae)

open access: yesEDIS, 2007
EENY-389, a 9-page illustrated fact sheet by F. W. Howard, describes a planthopper whose adults feed on various species of palms and is the only known vector for Lethal Yellowing disease in Florida. Includes sections in distribution, description, biology,
Forrest W. Howard
doaj   +5 more sources

Phytoplasma diseases of coconut in India - root (wilt) and tatipaka diseases

open access: yesCORD, 2004
Root (wilt) and Tatipaka diseases in India are caused by phytoplasma. Lethal yellowing disease in Caribbean region, Lethal yellowing like disease in west and east Africa and Coconut stem necrosis.in Sumatra and Peninsular Malaysia are phytoplasma induced
J.J. Solomon, L. Geetha
doaj   +1 more source

OOxytetracycline Hydrochloride (OTC-HCl) Application for Control of Palm Phytoplasmas

open access: yesEDIS, 2019
Phytoplasma diseases of palms are a major threat to the Florida nursery and landscaping industries.  Historically, lethal yellowing (LY) has been responsible for the death of millions of coconut palms throughout the Caribbean.
Brian W. Bahder, Ericka E. Helmick
doaj   +5 more sources

New data on a cultural control method against coconut lethal yellowing in Ghana

open access: yesCORD, 2004
Lethal yellowing disease has been rife in West Africa, especially Ghana, since 1932. In the 1990s, the first operations to fell diseased coconut palms at an early stage showed that this substantially slowed down the spread of the disease.
R. Philippe, S. K. Dery, J. Nkansa Poku
doaj   +1 more source

BRUCE EFFECT COMPETENCE IN YELLOW-LETHAL HETEROZYGOUS MICE [PDF]

open access: yesReproduction, 1974
Summary. The capacity of heterozygous yellow-lethal (Aya) and brown (aa) male mice to induce the Bruce effect was investigated. The proportion of SJL/J females showing a failure of implantation when exposed to males of either genotype was 80 %, whereas only 20 % of the control females not so exposed showed pregnancy failure.
Kakihana, R   +4 more
openaire   +2 more sources

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