background preloader


Facebook Twitter

AGRIMED - JUIN 1990 - Amélioration génétique de deux espèces de fruits secs méditerranéens: l'amandier et le pistachier.

Amandiers en Californie

OEPP - 2015 - ‘Candidatus Phytoplasma phoenicium’ - Almond witches’ broom. - Almond witches’ broom - Where: symptoms of almond witches’ broom were first reported in the 1990s in Southern Lebanon.

OEPP - 2015 - ‘Candidatus Phytoplasma phoenicium’ - Almond witches’ broom

Later studies showed that the disease had spread to many other Prunus-growing regions of Lebanon (detected in 16 out of the 26 Lebanese districts during 2009/2010 surveys). In Iran, symptoms of almond witches’ broom disease have been observed in the central and southern parts of the country. Although some genetic variability is observed among phytoplasmas found on stone fruit trees in Iran and Lebanon, ‘Ca. P. phoenicium’ has been detected in both countries. On which plants: the disease was initially found on almond (Prunus dulcis), but later also observed on peach (P. persica) and nectarine (P. persica var. nucipersica).

Damage: on almond trees, the disease is characterized by shoot proliferation and appearance of witches’ broom on the stems, small yellowish leaves, bushy growth, and general dieback. REMOTE SENSING - 2016 - Early Detection and Quantification of Almond Red Leaf Blotch Using High-Resolution Hyperspectral and Thermal Imagery. ANSES 01/04/15 NOTE d'appui scientifique et technique de l'Anses relatif à la présence d’allergènes d’amande et d’arachide dans les épices. FAS USDA 22/09/16 Tree Nuts Annual_Madrid_EU-28_9-8-2016. FERTILE SOIL SOLUTIONS 20/05/13 CALIF. ALMOND GROWERS EXPECT $3 BILLION CROP. ARS USDA - NOV 2012 - Poster : First year almond tree performance as affected by preplant soil steam, backhoe, and fumigation tr. Persoonia. 2012 June; 28: 1–13. Fungal trunk pathogens associated with wood decay of almond trees on Mallorca (Spain)

WIKIPEDIA - List of almond diseases. WIKIPEDIA – Almond. Description[edit] Tree[edit] Almonds begin bearing an economic crop in the third year after planting.


Trees reach full bearing five to six years after planting. The fruit matures in the autumn, 7–8 months after flowering.[3][4] Drupe[edit] 'Fitas' almonds from Ibiza Unshelled (left) and shelled (right) almonds Origin and history[edit] The almond is native to the Mediterranean climate region of the Middle East, eastward as far as the Indus.[6] In India, it is known as badam.

UNIVERSITY OF CALIFORNIA - Fruit & Nut Newsletters.April 2013 ALMOND News. SCIENCE DAILY 14/01/13 Two New Studies Show Why Biodiversity Is Important for Pollination Services in California Almond. Agricultural demand for pollination is growing more quickly than the supply of honey bees, the dominant species managed for crop pollination.

SCIENCE DAILY 14/01/13 Two New Studies Show Why Biodiversity Is Important for Pollination Services in California Almond

Increasing the efficiency of pollination represents a way of increasing crop yield without any increase in agricultural intensity or area. A study recently published in the Proceedings of the Royal Society B: Biological Sciences, shows that the pollination effectiveness of honey bees in California almond orchards was greater in the presence of other bees. Almond is a crop highly dependent on honey bee pollination and is a $3 billion industry in California. The study by researchers in Germany at Leuphana University of Lüneburg and California at UC Berkeley and Davis found that where other species of bees were present, honey bee behaviour changed and their pollination effectiveness was greater than in orchards where other bees were absent.

Furthermore, orchards with wild bees had a greater proportion fruit set. USDA TODAY 16/02/13 Fewer bees a threat to world's almond supply. TURLOCK, California (AP) — In an almond orchard in California's Central Valley, bee inspector Neil Trent pried open a buzzing hive and pulled out a frame to see if it was at least two-thirds covered with bees.

USDA TODAY 16/02/13 Fewer bees a threat to world's almond supply

Trent has hopped from orchard to orchard this month, making sure enough bees were in each hive provided by beekeepers. Not enough bees covering a frame indicates an unhealthy hive — and fewer working bees to pollinate the almond bloom, which starts next week across hundreds of thousands of acres (hectares) stretching from Red Bluff to Bakersfield. "The bloom will come and go quickly," said Trent, who works for the Bakersfield-based bee broker Scientific Ag Co. "The question is: Will the almond seeds get set? It depends if you have enough of a workforce of bees. " That has growers concerned as nomadic beekeepers from across the country converge on the state with their semi-trucks, delivering billions of bees to the orchards for the annual pollination.

THE ALMOND DOCTOR 21/12/12 What did I learn at the Almond Board’s annual conference? The Almond Board of California’s annual conference is a chance to connect with others in the almond industry, listen to world class researchers talk about their work, and check out a huge almond-focused trade show all at one event.

THE ALMOND DOCTOR 21/12/12 What did I learn at the Almond Board’s annual conference?

The 2012 meeting was last week (Dec 11-13). Here is a quick review of some of the things I picked up from researchers and informed industry members at that meeting… Joel Siegel, USDA ARS entomology researcher, discussed results from his work into navel orangeworm (NOW) control in almonds. He again stressed the “numbers game” reality of controlling this pest. High levels of overwintering NOW mean the season starts with a higher population that can build rapidly once hull split begins and new crop nuts are targeted by female NOW laying eggs.

Brad Hanson, UC Cooperative Extension Specialist for Weed Science, reported that Rely will be largely, if not completely, unavailable in California tree crops for 2013 and, perhaps, 2014. UNIVERSITY OF CALIFORNIA - UC IPM ONLINE - How to manage pests - Almonds. UNIVERSITY OF CALIFORNIA - Outbreak of new disease affects almond orchards statewide. The Issue Twig dieback, dead leaves, and mummified fruit caused by anthracnose.

UNIVERSITY OF CALIFORNIA - Outbreak of new disease affects almond orchards statewide

During wet years in the 1990s a new and unknown plant disease, later identified as an anthracnose fungus, occurred throughout most of California's almond growing region. It destroyed flowers and developing nuts, producing toxins that killed almond tree branches up to two inches in diameter. Losses continued throughout the season whenever rains occurred. Growers were at a complete loss for control of this disease and believed they might have to remove the affected orchards. What Has ANR Done? A UCCE farm advisor recognized the problem as a new disease on almond trees and a plant pathologist at UC Riverside succeeded in identifying the pathogen as the fungus Colletotrichum acutatum. The Payoff Identifying the disease, developing controls led to successful disease management.. Contact Supporting Unit: Dr. FARM BIOSECURITY (AU) - NOV 2012 - Orchard biosecurity manual for the almond industry. Plant Disease - July 2012 - Management of Almond Leaf Scorch Disease: Long-Term Data on Yield, Tree Vitality, and Disease Progre.

WESTERN FARM PRESS 27/05/13 40 years in almond pest management – a retrospective. A highly refined integrated mite management program was developed with funding from the Almond Board in 1984.

WESTERN FARM PRESS 27/05/13 40 years in almond pest management – a retrospective

The program introduced the presence-absence technique for monitoring mites. This year marks the 40th anniversary of the Almond Board of California’s (ABC’s) Production Research Program. It’s no coincidence that almond yields have more than doubled over the past 40 years, and damage from navel orangeworm has gone from a high of 8.8 percent down to 1 percent or less in the most recent crop.

Here’s how it happened. In 1972, the Federal Marketing Order for almonds was revised so that the ABC could establish and fund production research projects. NOW – The First Milestone Cooperative research with UC and USDA resulted in a “Four Point Program” for addressing navel orangeworm, which is the foundation of practices used today that have brought damage down to a new low, reducing direct crop losses and associated aflatoxin risk.

The four points are: · Winter sanitation. WESTERN FARM PRESS 29/03/13 UC IPM releases almond pest management video. The University of California Integrated Pest Management (IPM) program has released a new online video tool to help California almond growers practice year-round pest management.

WESTERN FARM PRESS 29/03/13 UC IPM releases almond pest management video

The video called, “How to Manage Almond Pests Using the Year-Round IPM Program” is a narrated how–to guidefor growers, pest control advisors, and others who work with almonds. The video explains season-long IPM efforts to stay on top of pest programs. The six-chapter video incorporates year-round IPM program and pest management guidelines to manage key almond pests including the Navel orangeworm, peach twig borer, and shot hole.

The video includes tips to take dormant spur samples, monitor for shoot strikes, and how to look for predators and parasites of key pests. Instructions are included on using treatment tables to choose pesticides which are effective while examining the impact on honey bees, natural enemies, and the environment. Amandier. Un article de Wikipédia, l'encyclopédie libre.


L'amandier (Prunus dulcis) est un arbre de la famille des Rosaceae, dont les fleurs d'un blanc rosé, apparaissent avant les feuilles. C'est le premier arbre fruitier à fleurir à la fin de l'hiver, une période où il gèle encore le matin. L'amandier est un des symboles de l'amour et de la virginité : les fleurs paraissant bien avant les feuilles, chaque rameau se voile alors complètement de blanc, évoquant ainsi une robe de mariée. PARLEMENT EUROPEEN - Réponse à question: E-3404/08 Protection des amandiers.

Dans certaines régions intérieures du Portugal, et notamment dans la Beira interior et le Trás-os-Montes, il y a encore une production importante d'amandiers; Vila Nova de Foz Côa est d'ailleurs la capitale de l'amandier.

PARLEMENT EUROPEEN - Réponse à question: E-3404/08 Protection des amandiers

Au cours de la campagne 2005, sur les quelque 13 000 hectares de surfaces déclarées de culture de fruits à coques, plus de 11 000 étaient situés dans cette région, et c'était l'amandier qui prédominait. Cependant, l'organisation du secteur au cours de l'année 2006 a fait que la surface de la zone intéressée était passée à 8 000 hectares et, pour la campagne 2007, il est prévu qu'elle tourne autour de 9 000 hectares. MAROC 19/02/09 Identification et lutte contre les ravageurs et maladies de l’amandier dans la région de Tafraout.