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萨斯喀彻温省农作物(以豆科作物为重点)的害虫和虫媒病原体状况.pdf

上传人: 明**** 编号:1195363 2026-04-16 77页 12.19MB

1、The Status of Insect Pests and Insect Transmitted Pathogens in Saskatchewan Crops with a Focus on LegumesSean PragerSaskatchewan crop production-Pulsesprincipal field crop(pulses)areas Canada is a major producer and the worlds largest exporter of pulses Saskatchewan accounts for 50.5%of Canadas tota

2、l Faba bean area 76%of Chickpea is produced in SaskatchewanFabaceae(Legumes/Pulses)Adapted from Smykal et al.,2015 Alfalfa looper(Autographa californica),infrequent on peasArmy cutworm(Euzia auxiliaris),infrequent on peasBlister Beetles(Lytta nuttalli and Epicauta spp.),favaCabbage seedpod weevil(Ce

3、utorhynchus obstrictus)Clover cutworm(Discestra trifolii)Grasshoppers(four species)Lygus bugs(Lygus spp.),mostly favaPea aphid(Acythosiphon pisum)Pea leaf weevil(Sitona lineatus)Pea weevil(Bruchus pisorum)Potato leafhopper(Empoasca fabae),dry beansSaltmarsh caterpillar(Estigmene acrea),infrequent pe

4、asSeedcorn maggot(Delia radicum&florialis),dry beansWireworms(Agriotes spp.),rare mostly in chickpea&peaMike Dolinski Laura Hubers Alberta Agriculture and Rural Development Mariusz Sobieski Whitney Cranshaw Whitney Cranshaw Joseph Berger,Insect pests in Western Canadian PulsesAlfalfa looper(Autograp

5、ha californica),infrequent on peasArmy cutworm(Euzia auxiliaris),infrequent on peasBlister Beetles(Lytta nuttalli and Epicauta spp.),favaCabbage seedpod weevil(Ceutorhynchus obstrictus)Clover cutworm(Discestra trifolii)Grasshoppers(four species)Lygus bugs(Lygus spp.),mostly faba but also lentilsPea

6、aphid(Acythosiphon pisum)Pea leaf weevil(Sitona lineatus)Pea weevil(Bruchus pisorum)Potato leafhopper(Empoasca fabae),dry beansSaltmarsh caterpillar(Estigmene acrea),infrequent peasSeedcorn maggot(Delia radicum&florialis),dry beansWireworms(Agriotes spp.),rare mostly in chickpea&peaMike Dolinski Lau

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1. **主要害虫与病害**:萨斯喀彻温省豆类作物主要害虫包括豌豆蚜(Acythosiphon pisum)、牧草盲蝽(Lygus spp.)、苜蓿叶象甲等;病害有豆类花叶病毒(BYMV)、豌豆条纹病毒(PeSV)等,豌豆蚜是主要传播媒介。 2. **豌豆蚜管理**:在蚕豆中,三种杀虫剂(氰虫酰胺、氯氟氰菊酯)可有效控制蚜虫并提高产量;在扁豆中,经济阈值为30-40头/180° sweeps,但2024年发现氯氟氰菊酯抗性风险。 3. **牧草盲蝽危害**:主要危害蚕豆,导致种子穿孔率超1%时等级下降,每英亩损失约$56,000(按16,000蒲式耳计)。 4. **病毒检测技术**:开发高灵敏度检测方法(如PSbMV mRNA低至23拷贝/反应),可从室温储存3个月的样本中检出病毒。 5. **抗性育种**:通过AGILE lentil多样性面板筛选抗性品种,利用植物抗性(抗生、驱避)管理害虫。
豆类虫害新威胁? 蚜虫抗药性如何? 病毒检测新方法?
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