lundi 17 novembre 2014

Société Africaine des Etudes et du Conseil Agricole (S.AF.E.C.A)


samedi 27 septembre 2014

Double catch with new sticky traps:

Moroccan greenhouse grower successfully fights Tuta Absoluta with pheromone sticky traps

Russell IPM recently launched the upgraded OPTIROLL Super sticky traps, well received by growers worldwide, and they also offer solutions specific to one of the most devastating and fastest spreading pests of our age, Tuta absoluta. 

Yellow Sticky Trap

Tuta absoluta is a serious invasive pest of tomatoes and potatoes. The problems associated with Tuta absoluta are its rapid population multiplication (up to 12 generations in 1 year) and its ability to develop resistance toward synthetic insecticides within few generations. After devastating tomato production in South America for years, it was introduced accidentally to Spain in 2006. Since then it has spread rapidly to main tomato production in Spain and the rest of the Mediterranean region and beyond. Recent reports on presence of the pest in Tanzania have sent shock waves through the agricultural world as farmers struggle to protect their livelihoods and also to keep their prices within reach of the average consumer.

For the Tuta pest, Russell IPM developed a full range of solutions to halt the pest at various stages in development. 

Clear Sticky Trap



For the adult stage they have developed a sticky fly roll called Tuta+ which incorporates pheromones to specifically attract the pest. As with standard rolls, the yellow colour of the trap has the advantage of attracting whitefly and aphids while the incorporated pheromone attracts Tuta absoluta, with the advantage of a significant reduction and a more cost-effective control where these 3 pests are present.

Russell IPM’s Tuta+ is commonly used in mass trapping by farmers including the Moroccan greenhouse grower Hahou Abdellah. In Morocco, Tuta+ pheromone traps have been found a very efficient and helpful tool to control the pests and reduce crop damage.


"We grow several kind of crops in the open field and in greenhouses in the regions around Agadir and Dakhla. Our production areas cover a few hundred hectares and we have to deal with many pests and diseases. In order to fight pests like Tuta Absoluta and whiteflies we have been using Tuta+ for a while with good results. This has led towards an improvement in our greenhouse output. There are less pests and we achieve a better yield and higher overall product quality."

Control and monitoring of Tuta absoluta is one of Russell IPM’s areas of expertise and they are continually looking to improve the plight of farmers dealing with this pest. For greenhouses working with beneficials, Russell IPM developed the Tuta roll, which is a clear sticky roll with pheromones incorporated to the sticky surface. 

Newest to the Tuta range is the Tuta black – a new version of the Tuta roll which is already proving popular. Recents trials in Spain indicated a high capture rate and the new product is already receiving a lot of interest from farmers who want to find the most up to date and effective methods of protecting crops.

Russell IPM are extending their reach into the horticulture and agriculture market, having recently introduced the OPTIROLL Super for whiteflies and thrips. Equipped with additional visual attraction to catch more insects, the capture rate of OPTIROLL Super can be twice as high as that of non-patterned sticky traps. “The secret is the pattern on the trap,” Dr Al Zaidi of Russell IPM said. “During our research we discovered that insects are more likely to be found caught on the borders of the sticky trap because they are more triggered by contrasting colours. Afterwards we experimented with different horizontal and vertical lines and circles until we found the right ratio of contrasting patterns.”

For more information: www.russellipm.com

Please contact Deborah on marketing@russellipm.com to get in contact with the distributor in your country.



Publication date: 9/24/2014
Author: Boy de Nijs
Copyright: www.hortidaily.com 

mercredi 9 juillet 2014

FIRST RECORD OF THE PREDATORY BUG, NESIDICORIS TENUIS IN
ETHIOPIA

The zoophytophagous predator, Nesidiocoris tenuis Reuter (Hemiptera: Miridae) occurs in the

Mediterranean (Gabarra, et al., 2008) and Asia (Muniappan, et al., 2012). It predates on aphids,
whiteflies, thrips, mites, and eggs and small larvae of lepidopteran insects. In the absence of prey
insects, it will feed on host plants. In addition, it oviposits its eggs in plant tissue. In the
Mediterranean, it is inundatively released in greenhouses for control of whiteflies and the South
American tomato leafminer, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae).
Tuta absoluta is a native of South America, and was accidentally introduced to Spain in 2006
(Urbaneja, et al., 2007). Since then, this highly invasive and destructive pest has spread to most of
Europe and the Mediterranean. It was reported in Ethiopia, in the Tigray region in 2012 and in the
Central Rift Valley in 2013 (Ayalew and Fekadu, 2013).
In November 2013, the USAID-sponsored IPM Innovation Lab (formerly CRSP) conducted a
Tuta absoluta workshop in Addis Ababa, Ethiopia to sensitize Eastern African countries
of its impending invasion. As a part of the workshop, a field trip was conducted to a
tomato field at Koka in the Oromia region on November 27, 2013. A single male specimen
of Nesidiocoris tenuis was collected by using a sweep-net over tomato plants. Its identity was
confirmed by Dr. Thomas J. Henry of the Systematic Entomology Laboratory in the
Agricultural Research Service of the U.S. Department of Agriculture, and the specimen
was deposited at the Smithsonian Institution’s National Museum of Natural History,
Washington, D.C. It was the first record of N. tenuis in Ethiopia and most probably in Africa.

Ayalew, G. and A. Fekadu. 2013. Occurrence and studies on the management of the tomato

leafminer, Tuta absoluta, in the Central Rift Valley of Ethiopia. Workshop on Tuta absoluta –
Meeting the Challenge of the Tomato Leafminer, Addis Ababa, Ethiopia (abstract).
Gabarra, R., J. Arnó and J. Riudavets. 2008. Tomate. In: J.A. Jacas and A. Urbaneja (eds) Control
biológico de plagas agrícolas, Phytoma-Espanña, Valencia, Spain, pp 410-422.
Muniappan, R., B.M. Shepard, G.R. Carner and P.A. Ooi. 2012. Arthropod Pests of Horticultural
Crops in Tropical Asia. CABI, Oxfordshire, UK. 168p.
Urbaneja, A., R. Vercher, V. Navarro, F. García Marí, J.L. Procuña. 2007. La polilla del tomate,
Tuta absoluta. Phytoam Espana, 194: 16-23.

Prof. R. Muniappan

IAPPS Coordinator Region XI: North America
Director, IPM Innovation Lab
Email: rmuni@vt.edu
Picture of the original specimen of Nesidiocoris tenuis
collected in Ethiopia (courtesy of Dr. Amer Fayad) MICRO-ORGANISMS AS AGENTS BETWEEN
FERTILIZATION AND PLANT PROTECTION

Source : http://www.plantprotection.org/Portals/0/documents/Newsletters/2014/IAPPS14.7c.pdf


samedi 27 juillet 2013

Modelos matemáticos para optimizar el control de la plaga más dañina para el tomate

Murcia podrá ofrecer a los agricultores directrices concretas de actuación

21/07/2013

Modelos matemáticos para optimizar el control de la plaga más dañina para el tomate
La Consejería de Agricultura y Agua, a través del Instituto Murciano de Investigación y Desarrollo Agrario y Alimentario (IMIDA), desarrolla un proyecto que contempla la introducción de modelos matemáticos de dinámicas de poblaciones para optimizar el control biológico de la plaga más dañina para el cultivo del tomate, la Tuta absoluta. El departamento de control biológico y protección de cultivos del IMIDA lleva cuatro años dedicado al estudio y aplicación de estos modelos matemáticos, en colaboración con el Instituto para la Biodiversidad y la Dinámica de los Ecosistemas (IBED) de la Universidad de Ámsterdam. El proyecto está en una fase muy avanzada y pronto se podrá ofrecer a los agricultores directrices concretas para establecer programas de actuación.
   Según el director del IMIDA, Adrián Martínez, la Tuta absoluta “es una plaga de origen sudamericano que elige el tomate como principal hospedante. Se detectó en Castellón en 2006 y se expandió rápidamente por toda la franja mediterránea, en donde llegó a producir importantes daños en los cultivos”.
   En este sentido, explicó que “la Tuta se instala en la hoja de la planta y hace galerías, por lo que reduce la capacidad fotosintética de ésta. La larva también perfora el fruto, lo que impide su comercialización. En la Región de Murcia su impacto ha sido considerable”.
   Según Juan Antonio Sánchez, investigador del departamento de Biotecnología y protección de cultivos del IMIDA, hasta la aparición de Tuta absoluta los agricultores murcianos disponían de un programa de control biológico de plagas bastante conseguido. Estaba basado en la utilización de enemigos naturales, que mantenían a raya a la principal plaga que había entonces: la mosca blanca. No obstante, con la entrada de la Tuta el IMIDA tuvo que replantearse de nuevo todas las estrategias de lucha.
   En un primer momento, los agricultores intentaron controlar la plaga por medios químicos, pero se comprobó que no era suficiente. Posteriormente, se empezó a trabajar con un chinche autóctono, que no es un depredador estricto, sino que cuando hay escasez de presas se alimenta entonces de la planta, con lo cual también puede llegar a originar daños en los cultivos si no se toman las medidas oportunas.
   Según Juan Antonio Sánchez, la introducción de modelos matemáticos ha permitido diseñar estrategias óptimas de manejo, teniendo en cuenta aspectos como la evolución de las poblaciones de la plaga y del depredador y la cantidad de alimento que hay que suministrar a éste para que no cause daños en la planta, entre otros.
   El equipo del departamento del IMIDA realiza ensayos en laboratorio para conocer todos los parámetros biológicos y posteriormente se verifican en campo. Los modelos matemáticos permiten predecir cómo va a evolucionar el sistema.

Introducción temprana en semillero

    Otra técnica empleada en la lucha biológica consiste es la introducción temprana del depredador en semillero. De esta forma, la planta de tomate ya dispone de unas defensas y cuando llega la plaga puede controlarla a densidades mucho más bajas, antes de que se produzcan daños.
   El Servicio de Sanidad Vegetal de la Consejería también ha contribuido en gran medida al control de la Tuta absoluta, asesorando a los agricultores en la mejora de los sistemas de asepsia en los invernaderos de tomate, con buenos cerramientos que dificulten la entrada de la plaga, el uso de feromonas, trampas de captura y la liberación de depredadores.


vendredi 30 novembre 2012

Report of the EPPO/FAO/IOBC/NEPPO Joint International Symposium on management of Tuta absoluta (tomato borer) V. Zlof, M. Suffert Article first published online: 7 AUG 2012 DOI: 10.1111/epp.2555


  1. Tuta absoluta, a South American pest of tomato now in the EPPO region: biology, distribution and damage (pages 205–210)
    G. Tropea Garzia, G. Siscaro, A. Biondi and L. Zappalà
    Article first published online: 7 AUG 2012 | DOI: 10.1111/epp.2556
  2. Using new egg parasitoids (Trichogramma spp.) to improve integrated management against Tuta absoluta (pages 249–254)
    H. Do Thi Khanh, A. Chailleux, M. Tiradon, N. Desneux, E. Colombel and E. Tabone
    Article first published online: 7 AUG 2012 | DOI: 10.1111/epp.2562
  3. Biological control of Tuta absoluta in Argentina and Italy: evaluation of indigenous insects as natural enemies (pages 260–267)
    M. G. Luna, N. E. Sánchez, P. C. Pereyra, E. Nieves, V. Savino, E. Luft, E. Virla and S. Speranza
    Article first published online: 7 AUG 2012 | DOI: 10.1111/epp.2564
  4. Biologie et complexe des ennemis naturels de Tuta absoluta à Mostaganem (Algérie) (pages 268–274)
    M. Boualem, H. Allaoui, R. Hamadi and M. Medjahed
    Article first published online: 7 AUG 2012 | DOI: 10.1111/epp.2570
  5. Effet des extraits végétaux méthanoliques de certaines plantes marocaines surTuta absoluta (Lepidoptera, Gelechiidae) (pages 275–280)
    N. Ait Taadaouit, M. Hsaine, A. Rochdi, A. Nilahyane and R. Bouharroud
    Article first published online: 7 AUG 2012 | DOI: 10.1111/epp.2571
  6. Stratégie Nationale de lutte contre la mineuse de la tomate Tuta absoluta Meyrick(pages 281–290)
    K. Ouardi, M. Chouibani, M. A. Rahel and M. El Akel
    Article first published online: 7 AUG 2012 | DOI: 10.1111/epp.2568
  7. The first report and control strategies of Tuta absoluta in Iran (pages 322–324)
    V. Baniameri and A. Cheraghian
    Article first published online: 7 AUG 2012 | DOI: 10.1111/epp.2577
  8. First record of the tomato leafminer, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) in Sudan (pages 325–327)
    E. S. I. Mohamed, M. E. Mohamed and S. A. Gamiel
    Article first published online: 7 AUG 2012 | DOI: 10.1111/epp.2578
  9. The current status of Tuta absoluta in Italy (pages 328–332)
    S. Speranza and L. Sannino
    Article first published online: 7 AUG 2012 | DOI: 10.1111/epp.2579
  10. Tuta absoluta (Meyrick) (Lepidoptera, Gelechiidae) in the Republic of Srpska (Bosnia and Herzegovina) (pages 337–340)
    Z. Đurić, S. Hrnčić, M. Vujanović, B. Đurić and S. Mitrić
    Article first published online: 7 AUG 2012 | DOI: 10.1111/epp.2581