mip soja
TRANSCRIPT
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MIP da Soja
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Lagarta da Soja
Anticarsia gemmatalis Lepdoptera: Noctuidae
É a principal praga da soja.
Ciclo 30 dias.
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Baixa infestação – verde Alta infestação - preta
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Pseudoplusia includens
Locomove-se por mede palmo
A postura pode ser feita em grupos ou de forma isolada.
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Danos
Causam danos severos no período vegetativo da cultura.
A desfolha na fase de florescimento e frutificação é a mais prejudicial.
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Inimigos Naturais
Orius insidiosus Geocoris sp. Nabis sp.
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Inimigos Naturais
Lebia concinna Callida sp. Calosoma granulatum.
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Inimigos Naturais
Crysoperda externa
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Inimigos Naturais
Pheidole megacephala Solenopsis invicta
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Inimigos Naturais
Chiracanthium inclusum Misumeops sp.
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Controle Biologico
Parasitoides
Trichogramma spp.
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Controle Biologico
Entomopatógenos
Nomuraea rileyi – FungoBaculovirus anticarsiae – VirusBacillus thurigiensis - Bactéria
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BtBaculovirus
Nomurea
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Amostragem
Conta-se duas lagartas.
Pano de batida 1x0,6 m. 1 ponto/ha. Contagem de lagartas maiores de
1,5cm
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Níveis de Ação Semeadura a Vegetativo 33% desfolha 40 lagartas/pano de batida.
Floração, formação e enchimento de vagem
15% desfolha 40 lagartas/pano de batida.
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Controle
Escolher produtos seletivos.
Evitar plantas hospedeiras nas proximidades como: amendoim, corda de viola, mucunas, feijões, algodão.
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Percevejos
Nezara viridula
Ninfas multicoloridas Postura hexagonal 40-130 ovos Ciclo 46 a 60 dias
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Euchistos heros
Contado em conjunto com o percevejo verde no pano de batida.
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Dano
Sugam a seiva das folhas e vagens Falha no enchimento de grãos
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Amostragem
Pano de batida
Formação de vagens 1ponto/ha
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Nível de Ação
Processamento: 4pecevejos/pano
Semente: 2percevejos/pano
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Controle Escolher produtos de baixo impacto
ambiental
Utilizar (cloreto de sódio a 0,5%) na mistura do inseticida. 500g para 100L de calda.
Monitorar as plantas daninhas (refúgios)
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Broca das Axilas
Epinotia aporema
A postura é feita sob as brotações A fase de pupa ocorre no solo
Ciclo de 35 a 40 dias
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Danos
Forma um cartucho de fios de seda dentro do qual se abriga
Infestam flores
Ocorre principalmente em cultivares tardios, regiões mais frias
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Parasitoide
Trichogramma pretiosum
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Amostragem
Examina-se 1ponto/ha
De forma Linear
10plantas por ponto
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Nível de Ação
25 a 30% de plantas com ponteiros atacados.
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Controle
Evitar plantas daninhas na lavoura
Carbamatos e Piretroides
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Tamanduá da Soja
Cascudo ou Bicudo Sternechus subsignatus
Mais comum em sistemas de PD Apresentam apenas uma geração por
ano
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Dano Tanto a larva quanto o adulto se alimentam
da soja
O adulto raspa o caule A larva se alimenta do interior da haste A larva no interior da haste causa morte da
planta Diminuição do estande de plantas Enfraquece a planta, ficando susceptível a
quebra
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Amostragem
Pano de batida
1ponto/há
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Níveis de Ação 1 adulto/pano na fase vegetativa 2 adultos/pano na fase reprodutiva
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Controle
Tratamento de semente Controle com inseticidas nas
bordaduras Rotação com Poáceas
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Coró da Soja
Phyllophaga cuyabana
Na fase adulta apenas as fêmeas se alimentam das folhas da soja
Seu ciclo ocorre predominantemente no solo
Possuem habito noturno
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Danos
Reduzem a área radicular da planta
Causam amarelecimento
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Inimigos Naturais
Entomopatógenos
Na Florida, o fungo Cordyceps é encontrado nas larvas.
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Amostragem
O Adulto na lavoura é sinal, que ocorreu danos na safra anterior.
Portanto é inviável a amostragem de adultos.
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Para amostrar larvas é necessário que se faça uma amostragem de solo, coletando torrões 30x30x30.
Uma amostra/ha
30cm
30cm
30cm
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Nível de Ação
1 larva/amostra
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Controle
Tratamento de sementes
Aração para expor a larva ao sol
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Controle
Não fazer rotação com trigo, cevada, milho e arroz.
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Vaquinha
Diabrotica speciosa
As larvas possui coloração branco leitoso, alimentam-se de raízes
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Danos
Os adultos alimentam-se das folhas
Provoca atraso no desenvolvimento da planta.
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Amostragem
Pano de batida
1ponto/ha
Formação de vagem até maturação.
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Controle Preferencialmente inseticida de contato. ND 2 insetos por pano
Tratamento de sementes
Aração profunda, auxilia no controle das larvas.
Piretroides, Diacilhidrazina.
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Obrigado.