Flea beetle adults are still causing trouble in canola this week. In one field we scouted, populations were very large and were causing large amounts of defoliation on emerging late-planted canola. It is important to continue monitoring fields to ensure that populations have been successfully managed and defoliation isn’t occurring.
All Crop Management Content
August 09, 2019
August 7, 2019 SDSU Extension will host a Forage Field Day for livestock producers, agronomists and industry clientele interested in producing and storing high quality forages.
This year’s seasonal pattern of wetter than average conditions is projected to continue through July and the rest of the summer season. The latest climate outlook, released June 20, 2019, shows an increased chance of wetter than average conditions in the next one to three months for the state of South Dakota.
Stripe rust and leaf rust were found in winter wheat plots at the SDSU research farm in Aurora. Observation of these two rusts indicates that we have inoculum in our area, therefore winter wheat fields should be scouted until wheat is done flowering.
During the past couple of weeks, reports of aphid populations in wheat fields have slowly been increasing. Typically, the initial aphid populations are observed earlier in the season, but the 2019 spring may have delayed infestations.
We are receiving numerous reports and also observing very large bean leaf beetle populations this year. As a result, there is also a lot of concern about soybean defoliation due to the emergence and subsequent feeding by the overwintering adult population.
This year flea beetle emergence is behind schedule, but so is a lot of the canola emergence. We are observing very large flea beetle populations on late-planted canola that is just emerging. As a result, much of this canola is being heavily defoliated and will likely require foliar insecticide management.
On May 20, 2019, the United States Environmental Protection Agency announced the cancellation of registrations for 12 products that contain neonicotinoid insecticides. The cancellation of the product registrations was voluntarily requested by the companies that had registered the products.
Producers of field peas may need to scout for powdery mildew this year. Powdery mildew is a late-season fungal disease that can impact peas if weather conditions are conducive. However, this disease can also occur in early planted fields in South Dakota under the right environmental conditions and when the crop canopy is heavy.
2019 Growing Season Challenges Addressed by SDSU Extension Staff During Faulkton & Aberdeen Open-Houses
June 19, 2019
SDSU Extension is hosting open house meetings in Faulkton and Aberdeen June 21, 2019 to address the current state of farming.