Beans
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41 questions
| 🇬🇧 | 🇬🇧 |
| What pre-em herbicide active ingredient options are there for spring beans? | Pendimethalin, Imazamox, Clomazone |
| What should be done if using HSS? | Test seed for Ascochyta and stem nematode |
| What is the ideal drilling date for winter beans? | Mid october - Late November |
| What pre-em herbicide active ingredient options are there for winter beans? | Pendimethalin, Clomazone, Imazamox, Carbetamide, Propyzamide, Prosulfocarb (EAMU) |
| What post-em herbicide options are there for BLW? What is the latest timing for application? | Bentazone up to 7 leaves unfolded |
| What post-em grassweed herbicide options are there? What is the latest timing for application? | Cycloxydim up to 8 weeks prior to harvest |
| What is the target plant population for spring beans? | 35-40 plants/m2 |
| What is the monitoring and control process for Bruchid Beetle? | At early pod set look for adults, if found spray hallmark zeon in high water volume once temperatures have reached 20 degrees on 2 consecutive days. Repeat after 10 days if adults remain present. |
| When are black bean aphids likely to be an issue, what is the threshold and how may they be controlled? | May-June when 5% of plants are infested. Can be controlled using Primicarb |
| How can stem nematode be controlled? | Test seed, do not plant infected seed, do not plant into infected soils |
| What is a suitable fungicide for beans? | Pyraclostrobin, boscalid, azoxystrobin |
| What can be applied to treat downy mildew? | Metalaxyl (EAMU) |
| How is bruchid beetle damage caused? | Adults lay eggs into pods, larvae hatch and burrow into bean, hatch into adult and bore their way out |
| Other than adult damage, why are pea and bean weevil so damaging to legumes? | The adults lay eggs into soil, larvae hatch and feed on nitrogen fixing root nodules |
| What is the PGRO advice for a bruchid threshold? | 2 consecutive days of 20 degrees and above, if adult is found in crop when pods have first developed, apply lambdacyhalothrin and 7-10 days later if still present |
| What is the threshold for black bean aphid? | 10%, but if application is made at 5% infestation then better control of virus infection |
| What are the two viruses transmitted by black bean aphids? | Bean leaf roll virus, bean yellow mosaic virus |
| How does pea and bean wilt and foot root rot inoculum survive overwinter? | In the trash as chlamydospores |
| What is the control strategy for foot and root rot? | Improve drainage, certified seed, rotation |
| What are high risk conditions for bean rust? | Hot dry weather in July/ August at early flowering |
| What are management controls of bean rust? | Green bridge removal, Signum at flowering and spray 3 weeks later if present |
| What are high risk conditions of chocolate spot? | Windy, 15-20 degrees and humid, phosphate deficient soils |
| How does chocolate spot overwinter? | Sclerotia in the soil and on volunteers |
| What are management controls of chocolate spot? | Rotation, separate spring and winter crops, avoid new crops near old crop location, signum applied at flowering |
| What are high risk conditions of downy mildew? | Cool humid weather, spring crops |
| How is downy mildew overwintered? | Oospores in the soil |
| What are management controls of downy mildew? | Remove crop debris, rotation, SL567A with signum at flowering |
| When is T1 for beans? | Early/ mid flowering/ BBCH 59 |
| When is T2 for beans? | Mid/ late flowering/ BBCH 69 |