Sunflower

“This pathogen has a broad host range including garlic, leek, onion, shallot, asparagus, tomato, radish, sunflower, parsley, alfalfa, and soybean.”

“Risks of sunflower disease will be greatly magnified by short sequencing of sunflower in a crop rotation. Sclerotinia or white mold (wilt, stem rot and head rot) is the primary disease concern with a short sunflower rotation. Rotations of at least three- or four-year spacings between sunflower or other Sclerotinia-susceptible crops (e.g., canola, dry bean, soybean) are recommended to help reduce disease risk.”

“Sclerotinia or white mold (wilt, stem rot and head rot) is the primary disease concern with a short sunflower rotation. Rotations of at least three- or four-year spacings between sunflower or other Sclerotinia-susceptible crops (e.g., canola, dry bean, soybean) are recommended to help reduce disease risk.”

“Risks of sunflower disease will be greatly magnified by short sequencing of sunflower in a crop rotation. Sclerotinia or white mold (wilt, stem rot and head rot) is the primary disease concern with a short sunflower rotation. Rotations of at least three- or four-year spacings between sunflower or other Sclerotinia-susceptible crops (e.g., canola, dry bean, soybean) are recommended to help reduce disease risk.”

“Sclerotinia or white mold (wilt, stem rot and head rot) is the primary disease concern with a short sunflower rotation. Rotations of at least three- or four-year spacings between sunflower or other Sclerotinia-susceptible crops (e.g., canola, dry bean, soybean) are recommended to help reduce disease risk.”

“This pathogen has a broad host range including garlic, leek, onion, shallot, asparagus, tomato, radish, sunflower, parsley, alfalfa, and soybean.”

“Agric. Glycine max soybean Orn. Halesia tetraptera mountain (Carolina) silverbell Wild Hamamelis virginiana American witchhazel Wild Hamamelis japonica invasive witchhazel Agric. Helianthus spp. sunflower Orn. Heptacodium miconioides seven sons flower Orn. Hibiscus moscheutos crimsoneyed rosemallow Orn. Hibiscus syriacus rose of Sharon (hibiscus) Agric. Humulus lupulus common hop”

“This pathogen has a broad host range including garlic, leek, onion, shallot, asparagus, tomato, radish, sunflower, parsley, alfalfa, and soybean.”

“This pathogen has a broad host range including garlic, leek, onion, shallot, asparagus, tomato, radish, sunflower, parsley, alfalfa, and soybean.”

“Safflower should not follow safflower in rotation or in close rotation with crops susceptible to Sclerotinia head rot (white mold), such as sunflower, mustard, canola (oilseed rape), or dry bean.”

“However, sunflowers should not be planted in last year's soybean fields because girdler problems are usually worse in this rotation.”

“Agric. Glycine max soybean Orn. Halesia tetraptera mountain (Carolina) silverbell Wild Hamamelis virginiana American witchhazel Wild Hamamelis japonica invasive witchhazel Agric. Helianthus spp. sunflower Orn. Heptacodium miconioides seven sons flower Orn. Hibiscus moscheutos crimsoneyed rosemallow Orn. Hibiscus syriacus rose of Sharon (hibiscus) Agric. Humulus lupulus common hop”

“Risks of sunflower disease will be greatly magnified by short sequencing of sunflower in a crop rotation. Sclerotinia or white mold (wilt, stem rot and head rot) is the primary disease concern with a short sunflower rotation. Rotations of at least three- or four-year spacings between sunflower or other Sclerotinia-susceptible crops (e.g., canola, dry bean, soybean) are recommended to help reduce disease risk.”

“However, sunflowers should not be planted in last year's soybean fields because girdler problems are usually worse in this rotation.”

“It is important to note that the pathogen has a very broad host range and infects crops such as alfalfa, canola, edible beans, cole crops, peanuts, pulse crops and sunflower. In addition, good weed management is recommended because several weeds are hosts for the pathogen. Corn and wheat can be used in crop rotation with soybean to minimize inoculum build-up over time.”

“This pathogen has a broad host range including garlic, leek, onion, shallot, asparagus, tomato, radish, sunflower, parsley, alfalfa, and soybean.”

“Sclerotinia or white mold (wilt, stem rot and head rot) is the primary disease concern with a short sunflower rotation. Rotations of at least three- or four-year spacings between sunflower or other Sclerotinia-susceptible crops (e.g., canola, dry bean, soybean) are recommended to help reduce disease risk.”

“Strawberries are susceptible to Verticillium wilt. Do not plant strawberries following strawberries, raspberries, potatoes, tomatoes, peppers, eggplant, sunflowers and alfalfa.”

“When deciding on fields for canola, avoid those with any history of white mold, whether it be in vegetables, sunflowers, or soybeans. In addition, ensure that you do not plant canola in front of vegetable crops or soybeans, where white mold can be an issue.”

“overwintering sclerotia germinate to form apothecia that shoot ascospores up into the bean canopies. If free moisture is available, the spores germinate and initiate infection on leaves or upper stems. Disease progresses within canopies that remain closed, with higher humidity and less air movement. Repeated cropping of susceptible crops, particularly sunflowersincreases levels of sclerotia within fields.”

“Conversely, continuous cropping of beans increases the potential for damage and yield losses, not only from white mold but also from root rots and bacterial blights. Therefore, it is recommended that bean fields be rotated in a three-year cropping cycle that does not include dry beans, soybeans, sunflowers, or other susceptible hosts.”

“We believe there are two main contributing factors to the poor performance of crops following sunflower in West Texas. These factors are deep-water extraction and inadequate fertility programs for sunflower. First, sunflowers are deeply rooted. It is common for sunflowers to extract soil moisture from a depth of six feet or more. Thus most of the time subsequent crops do not have as much stored soil moisture to draw from, and there has been insufficient time for rainfall to recharge soils.”

“Care should be taken when selecting crops to rotate with soybeans. Most broad-leaf crops such as alfalfa, sunflower, dry beans, are also hosts of white mold. Small grains and corn are good nonhost crops for white mold.”

“Strawberries are susceptible to Verticillium wilt. Do not plant strawberries following strawberries, raspberries, potatoes, tomatoes, peppers, eggplant, sunflowers and alfalfa.”

“This pathogen has a broad host range including garlic, leek, onion, shallot, asparagus, tomato, radish, sunflower, parsley, alfalfa, and soybean.”

“fertilizer nitrogen rates should be increased about 30 pounds of nitrogen per acre if the wheat will immediately follow grain sorghum or sunflowers.”

“Research in Crookston, Minn., showed that sunflower seed yield was 5% higher after potato, 20% higher after sugarbeet, 8% higher after pinto bean and 17% higher after wheat, compared with sunflower grown after sunflower.”

“Crop rotation with nonhosts (for example, wheat and corn), avoiding fields with a history of the disease and selection of a resistant sunflower hybrid (if available) are important management tools for Verticillium wilt.”

“Research in Crookston, Minn., showed that sunflower seed yield was 5% higher after potato, 20% higher after sugarbeet, 8% higher after pinto bean and 17% higher after wheat, compared with sunflower grown after sunflower.”

“When the trap crops were planted adjacent to the perimeter of a plot of organically grown Hinson soybeans, the total number of stink bugs remained much higher in the trap crop than in the soybeans (Fig. 7).”

“Treatments for evaluation consisted of buckwheat (cv Mancan), grain sorghum (cv 9200Y), pearl millet (Tiftleaf III), sunflower (Perodovic), okra (Clemson Spineless) and hemp sesbania (cv from Adams-Briscoe Seed Co) along with an unplanted weedy control plot.”

“Sorghum and sunflowers can also be used as a trap crop for leaffooted bugs, luring them away from tomato plants.”

“Such a staggered planting system is effective for attracting the late generations of leaffooted bugs away from sensitive crops like tomatoes. Results from studies in Alabama indicated over 60 percent reduction in leaffooted bugs compared to tomatoes grown without trap crops under drought conditions. • Other benefits of a sunflower-sorghum trap crop system include reduction in wind damage and conservation of natural enemies.”

“Crop rotation with nonhosts (for example, wheat and corn), avoiding fields with a history of the disease and selection of a resistant sunflower hybrid (if available) are important management tools for Verticillium wilt.”

“Research in Crookston, Minn., showed that sunflower seed yield was 5% higher after potato, 20% higher after sugarbeet, 8% higher after pinto bean and 17% higher after wheat, compared with sunflower grown after sunflower.”

“While sunflowers were attractive to H. halys, no difference in fruit damage was observed in peppers surrounded by the sunflower trap crop versus those peppers surrounded by peppers.”

“We also assessed the suitability of three flower treatments (buckwheat; a combination of fennel, Foeniculum vulgare (Mill.) and dill, Anethum graveolens (L.); and a combination of sunflower, Helianthus annuus (L.) and yarrow, Achillea millefolium (L.)) for enhancing parasitism of lepidopteran pests in an organic broccoli production system, and predation of sentinel eggs of the beet armyworm”