Results 81 to 90 of about 37,823 (222)

Effects of chitosan treatments on para rubber leaf fall disease caused by Phytophthora palmivora Butler - a laboratory study [PDF]

Songklanakarin Journal of Science and Technology (SJST), 2014
Leaf fall is a serious disease of para rubber seedlings, known to cause economic losses in several nurseries of southern Thailand. It is caused by a phytopathogenic fungal-like organism Phytophthora.
Anurag Sunpapao, Chaninun Pornsuriya
doaj  

Multiple effectors trigger non‐host resistance in Solanum americanum against Pseudomonas syringae

The Plant Journal, Volume 123, Issue 6, September 2025.
SUMMARY Wild plant species are threatened by diverse pathogens, but disease symptoms are rarely observed in nature. This suggests that wild plants harbor valuable sources of resistance. In this study, we show that the model bacterial pathogen Pseudomonas syringae pv.
Jieun Kim, Markéta Vlková‐Žlebková, Honour C McCann, Kee Hoon Sohn   +3 more
wiley   +1 more source

Control of potato late blight by caraway oil in organic farming [PDF]

, 2005
Caraway (Carum carvi) seeds contain biologically active essential oils, which have shown potential in controlling Phytophthora infestans (P.i.). An attempt is being made to develop a P.i.
Fabritius, A.-L., Hakala, K., Hannukkala, A., Keskitalo, M., Ketoja, E., Lehtinen, A., Mikkonen, P., Vuorema, A.   +7 more
core  

Occurrence and distribution of black pod rot of Cocoa (Theobromae cocoa L.) in southern transition zone of Karnataka [PDF]

, 2017
Straminipile genus Phytophthora cause significant disease losses to global cocoa production. Phytopthtora palmivora is one of the major constraints in cocoa production causes significant pod losses. P.
Adivappar, Adivappar, Jayalakshmi, K., Nagarajappa, Nagarajappa, Narasimhamurthy, H. B., Narayanaswamy, P., Raju, J., Ravindra, H., Shivanna, S.   +7 more
core   +2 more sources

The American cocoa pod borer, Carmenta foraseminis, an emerging pest of cocoa: A review El barrenador americano de la mazorca de cacao, Carmenta foraseminis, una plaga emergente del cacao: una revisión

Agricultural and Forest Entomology, Volume 27, Issue 3, Page 340-356, August 2025.
Abstract This review provides a synthesis of the available knowledge on Carmenta foraseminis, an emerging cocoa pest in northern South America. This moth was first described in 1995 in Panama, and its proliferation across the Amazon basin is currently threatening the production of cocoa in the region and may endanger the sector's sustainability. Hence,
Mónica Arias, Philippe Ninnin, Martijn Ten Hoopen, Jhoner Alvarado, Oscar Cabezas Huayllas, Bruno Valderrama, Gabriel Alguilar, Charles Perrier, Frédéric Dedieu, Leïla Bagny Beilhe   +9 more
wiley   +1 more source

Exploring the Research Evolution of Cacao Diseases Over the Past Two Decades: A Review

Plant Pathology, Volume 74, Issue 6, Page 1470-1494, August 2025.
A scientometric analysis (1999–2025) reveals multidisciplinary research on cacao diseases, highlighting genomics and global collaboration, with gaps in field validation and knowledge integration. ABSTRACT Cacao (Theobroma cacao) is an economically vital world crop facing threats from various diseases, causing substantial yield losses.
Taís Letícia de Oliveira Santos, Flávia Luiza Araújo Tavares da Silva, Deborah Araújo Dionízio da Silva, Priscilla Efraim   +3 more
wiley   +1 more source

Convolutional Neural Network Model for Cacao Phytophthora Palmivora Disease Recognition

International Journal of Advanced Computer Science and Applications
— Cacao, scientifically known as Theobroma cacao, is a highly nutritious food and is extensively utilized in multiple sectors, including agriculture and health.
Jude B. Rola, Jomari Joseph A. Barrera, Maricel V. Calhoun, J. F. O. Maaghop, Magdalene C. Unajan, Joshua Mhel Boncalon, Elizabeth T. Sebios, J. Espinosa   +7 more
semanticscholar   +1 more source

Crown Rot and Sudden Death of Almond Trees Caused by Oomycetes in Southern Iberian Peninsula

Plant Pathology, Volume 74, Issue 6, Page 1915-1934, August 2025.
This study reveals the aetiology of crown rot and sudden death in young almond orchards in the southern Iberian Peninsula, with Phytophthora niedehauseri being the main pathogen. ABSTRACT From March 2020 to November 2022, 12 commercial almond (Prunus dulcis) orchards showing symptoms of chlorosis, wilting, defoliation, cankers, crown rot and profuse ...
Carlos Agustí‐Brisach, María Carmen Raya, María Carmen Saigner, Ana López‐Moral, Luis F. Roca, María Lovera, Octavio Arquero, Antonio Trapero   +7 more
wiley   +1 more source

Emerging oomycete threats to plants and animals [PDF]

, 2016
Oomycetes, or water moulds, are fungal-like organisms phylogenetically related to algae. They cause devastating diseases to both plants and animals.
Chaparro-Garcia, Angela, Dagdas, Yasin, De la Concepcion, Juan Carlos, Derevnina, Lida, Giannakopoulou, Artemis, Kamoun, Sophien, Kellner, Ronny, Pennington, Helen G., Petre, Benjamin, Sarowar, Mohammad Nasif, van West, Pieter   +10 more
core   +5 more sources

Production of Extracellular Enzymes by Phytophthora palmivora (Butl.) Butl. [PDF]

Journal of General Microbiology, 1968
SUMMARY: Phytophthora palmivora is more exacting in its nutrition for extracellular enzyme production than for growth. All of thirteen defined media tested supported fairly good growth. The major enzymes detected were: endopolygalacturonase (endo-PG), maceration factor (MF), α-L-arabinofuranosidase (AF) and phenolase. These enzymes were not detected in
openaire   +2 more sources