plan nacional de seguridad alimentaria manejo ecolÓgico de plagas en la huerta ing. agr. graciela...

PLAN NACIONAL DESeguridad Alimentaria

MANEJO ECOLÓGICO DE PLAGAS EN LA

HUERTA

Ing. Agr. Graciela Gasparetti

Agente de Proyecto PROHUERTA

SI UD ENCUENTRA ESTO EN LA HUERTA…

¿QUÉ HARÍA?

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MANEJO ORGÁNICO

NUESTRO PLANETA

Sistemas Naturales

Sistemas Artificiales

Ecosistemas

Perfecto EquilibrioAgrosistem

asDesequilibrio“La base del MANEJO ORGÁNICO es

aprovechar los principios naturales de los ecosistemas para crear y/o reestablecer la BIODIVERSIDAD”

PRINCIPALES CUIDADOS

• ABONOS• RIEGOS• LABORES CULTURALES• PRODUCCIÓN DE SEMILLAS

“Cada una de las tareas tiene relación con la anterior. No son

aisladas, sino que forman un CONJUNTO que favorecen el

funcionamiento de los procesos vitales del agrosistema”

PLAGAS EN EL AGROSISTEMA

“Los insectos forman parte del Ecosistema”

HAY QUE CONTROLA

R

Especies fitófagas

Especies predatoras

“Cada AGROSISTEMA presenta una SITUACIÓN PARTICULAR, por lo que cada PRODUCTOR definirá los pasos a seguir para controlar las plagas”

CONTROL INTEGRADO

CONTROL CULTURAL

-Manejo de malezas-Rotación de cultivos-Movimiento de la tierra-Épocas de siembra-Asociaciones-Cercos vivos-Conducción de las especies-Uso de variedades resistentes

CONTROL BIOLÓGICO

-Recuperación y cuidado de la fauna útil autóctona-Incorporación de enemigos naturales-Entomopatógenos: compra y producción

CONTROL QUIMICO

-Preparados naturales-Productos comerciales

ALGUNOS PREDADORES, BENÉFICOS O FITÓFAGOS

ESPECIES BENÉFICAS O FITÓFAGAS

COLEÓPTEROS: COCCINÉLIDOS (VAQUITAS)

• De colores vistosos (rojo, negro, blanco, amarillo

•Consumen pulgones y larvas de gusanos cortadores, a veces trips y ácaros.

•Se encuentran en la alfalfa sin tratamientos químicos



ESPECIES BENÉFICAS O FITÓFAGASCOLEÓPTROS: CARÁBIDOS (CASACRUDOS, JUANITAS, BOTICARIOS, CALOSOMA) •Son grandes, aparecen

de noche alrededor de la luz.

•Marrón oscuro, tornasolado verde, eliminan olor desagradable.

•Comen larvas y adultos de varias especies.



http://images.google.com.ar/imgres?imgurl=http://www.cbif.gc.ca/spp_pages/carabids/gifs/24820.gif&imgrefurl=http://www.cbif.gc.ca/spp_pages/carabids/phps/image3_e.php&h=150&w=130&sz=8&hl=es&start=6&tbnid=ZubWt3PPa7urJM:&tbnh=90&tbnw=78&prev=/images%3Fq%3Dselenophorus%26svnum%3D10%26hl%3Des%26lr%3D%26sa%3DN

ESPECIES BENÉFICAS O FITÓFAGASCRISÓPIDOS (CRISOPAS)

•De color verde amarillento, muy frágiles y delicados

•Consumen pulgones, arañuelas y trips



MANTOIDEOS (MAMBORETÁ, TATADIÓS

O COMEPIOJO)


•Grandes y verdes.

•Consumen varias especies de insectos plagas



ODONATOS (LIBÉLULAS Y AGUACILES)•Colores y brillo variables

•Excelentes depredadores de mosquitos y otros insectos

•Las ninfas cazan en el agua y los adultos en la tierra


http://images.google.com.ar/imgres?imgurl=http://www.xtec.es/ceip-prosperitat/webciencia/libelula.jpg&imgrefurl=http://www.xtec.es/ceip-prosperitat/webciencia/insectes.htm&h=190&w=236&sz=9&hl=es&start=14&tbnid=Yo6BQpx24kee_M:&tbnh=83&tbnw=104&prev=/images%3Fq%3Dlib%25C3%25A9lula%26svnum%3D10%26hl%3Des%26lr%3D

HIMENÓPTEROS (AVISPAS PARÁSITAS)


•Avispas muy pequeñas.

•Ponen sus huevos dentro de varias especies de insectos.



HIMENÓPTEROS (HORMIGAS COLORADAS)


•Cazadores activos

•Completan su dieta con otros insectos

http://www.viarural.com.ar/viarural.com.ar/agricultura/aa-hormigas/acromyrmex-striatus.htm


HEMÍPTEROS (CHINCHES)

•Muy activas y voraces

•Atacan trips, orugas, ácaros y chicharritas


http://images.google.com.ar/imgres?imgurl=http://www.utextension.utk.edu/fieldCrops/cotton/cotton_insects/images/SpineSSB.jpg&imgrefurl=http://www.utextension.utk.edu/fieldCrops/cotton/cotton_insects/photo_gallery.htm&h=493&w=440&sz=56&hl=es&start=7&tbnid=nG_V3my7Gcc_zM:&tbnh=127&tbnw=113&prev=/images%3Fq%3Dpodisus%26svnum%3D10%26hl%3Des%26lr%3D


HEMÍPTEROS (NABIDAE)

•Toda la familia es predadora

•Se alimenta de huevos, larvas, pulgones y jugos vegetales

http://images.google.com.ar/imgres?imgurl=http://www.ruf.rice.edu/~ecology/insects/Hemip%2520Nabidae%2520Nabis%2520americoferus%2520UHCC%2520S%252019%25206.8.01%2520n1.jpg&imgrefurl=http://www.ruf.rice.edu/~ecology/insects/pics.html&h=622&w=400&sz=176&hl=es&start=5&tbnid=kNtSF0FODCmMqM:&tbnh=134&tbnw=86&prev=/images%3Fq%3DNABIS%26svnum%3D10%26hl%3Des%26lr%3D


HEMÍPTEROS (ORIUS)

•Muy activas y voraces

•Atacan trips, ácaros, pulgones, cochinillas, mosca blanca y de huevos y larvas


HEMÍPTEROS (GEOCORIS)

•Depredador omnívoro

•Atacan trips, ácaros, pulgones, cochinillas, mosca blanca y de huevos y larvas pequeñas


http://images.google.com.ar/imgres?imgurl=http://cedarcreek.umn.edu/insects/newslides/020007018002apd.jpg&imgrefurl=http://cedarcreek.umn.edu/insects/album/020007018ap.html&h=500&w=366&sz=232&hl=es&start=4&tbnid=2kurRUqox37_2M:&tbnh=127&tbnw=92&prev=/images%3Fq%3Dgeocoris%26svnum%3D10%26hl%3Des%26lr%3D

ESPECIES BENÉFICAS O FITÓFAGASARÁCNIDOS

•Tienen un efecto estabilizador en las poblaciones de plagas

•Son de hábitos diurnos y nocturnos. Muy quietas


http://images.google.com.ar/imgres?imgurl=http://research.amnh.org/entomology/blackrock2/pictures/spider_images/galleries/araneidae/araneid_small.jpg&imgrefurl=http://research.amnh.org/entomology/blackrock2/pictures/spider_images/galleries/morpho-gallery3.htm&h=200&w=180&sz=6&hl=es&start=10&tbnid=pRJfLEjdvzcO1M:&tbnh=99&tbnw=89&prev=/images%3Fq%3Daraneidae%26svnum%3D10%26hl%3Des%26lr%3D

SI UD ENCUENTRA ESTO EN LA HUERTA…

VUELVO A PREGUNTAR…

¿QUÉ HARÍA?

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MUCHAS GRACIAS

Ing. Agr. Graciela Gasparetti

Agente de Proyecto - PROHUERTA

plan nacional de seguridad alimentaria manejo ecolÓgico de plagas en la huerta ing. agr. graciela...

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