Synopsis: Most nitrogen has now been applied to wheat. Many abandoned plans for split application. Corn planting ranges from 10% – 50% complete. Availability of rental fertilizer spreaders, custom application and accessing of UAN are creating bottlenecks. Growers are beginning to use packers/rollers due to dry soil conditions. Cereals: Much of the winter wheat is now in the first node stage, with…
Synopsis: Very little nitrogen has been applied to wheat, and many are now abandoning plans for split application. In most areas the wheat looks good, including late plantings. Agricorp has received very few damage claims, and are busy inspecting uninsured late planted wheat. May 1 is deadline for applying for or making changes to crop insurance. Remind growers they need to insurance…
Synopsis Canola is advancing rapidly with April planted canola now bolting to 70% flower stage. Some canola stands are thin and uneven in growth which has growers questioning need or timing for fungicide. The biggest risk factors for sclerotinia are adequate soil moisture, rainfall during flowering, 48-72 hours of wetness in canopy for infection to occur and a dense canopy….
Dry conditions in Northern growing areas has resulted in uneven emergence. The majority of April planted canola is 2-6 leaf and quite variable within a field. In thin stands of canola consider lowering the action threshold for insect and weed management. Flea beetle pressure continues to remain high in most areas. Scout up to the 4 leaf stage. Control weeds…
It is estimated that 40-50% of intended acres is planted. Dry soils and forecast cooler temperatures have delayed planting in some areas. As part of a weed control program, rotary hoeing beans in the 1-2 leaf stage (not in hook stage) helps to remove very small weed seedlings. If adequate rainfall is not received within 7-10 days of planting, consider…
Planting has started with 10 percent in. Soil conditions have been excellent with good soil moisture. Field trials have generally not shown economic response to nitrogen, although applying a small amount of N (30-40 lb/ac) encourages rapid vegetative growth, canopy closure and stimulates root growth which can aid in overcoming stress caused by root rot or other factors. The safe…
Planting is complete in most areas. April planted canola is at 2-4 leaf stage and advancing rapidly. Plant populations are fair to average (4-8 plants/ft2) with some replanting due to weather related stress and flea beetles. Flea beetle pressure is high in most areas. Sprays have no residual control so scout several days later to evaluate flea beetle populations. Populations…
Early planted canola is at 1-2 leaf and later April planted canola is cotyledon to 1 leaf stage. Heavy rains in several areas resulted in crusting and emergence issues. Flea beetle pressure is high in some areas. Populations are highest in field borders. Scout emerged canola for flea beetles up to 4 leaf stage. Threshold for control is 25% leaf…
Once canola starts to emerge, start scouting for flea beetles. Flea beetles are now very active and present in emerged canola. Canola will emerge quickly with forecast temperatures in high teens for the next week. Flea beetle damage is most severe the first two weeks after canola after canola seedling emergence. At the 3-4 leaf stage the plants can generally outgrow…
Canola: Planting is 95 % complete in southern growing areas and nicely started in northern districts. April planted fields are at cotyledon-1st leaf stage. Flea beetles are now actively feeding. Populations are highest in field borders. Threshold for control is 25% leaf feeding. Weeds are emerging with the canola. Critical weed control period is 1 – 4 leaf stage. Schedule…
Planting is 70 % complete in southern areas, and freezing overnight temperatures has kept most growers in northern areas out of the field. Cold temperatures are delaying emergence, with early planted canola taking 14-21 days to emerge. There have been several reports of low emergence and frost damage to very early planted canola. Begin to check stand emergence 10-14 days…
Planting is 70 % complete in West – Central Ontario. Early April planted fields are in cotyledon to 1st leaf stage with good emergence. Timely rainfall received in most areas will help even emergence of later planted stands. Emergence is occurring in 10 to 14 days under cold soil temperature conditions. Pay attention to 1000 kernel seed weight (grams per…
Planting is 40% complete in the west-central region of Ontario. Early April seeded canola is 10-50% emerged. Cold temperatures with sub-zero nights has slowed emergence and delayed seeding.Soil conditions have been excellent for field work although windy and dry weather is resulting in rapid drying of soils. If soils are dry and loose, level and pack as part of tillage…
Canola seedlings can with stand a considerable frost (-5 to -8 0 C) if plants have become acclimatized following a few days of cold temperatures. However, canola seedlings growing under warm conditions will be tender, and can be killed by even a f few degrees frost. Ice crystals will form on the leaf surface before they form within cells causing…
There has been a great deal of debate about the need for boron on spring canola. It is well documented that boron plays a critical role in proper canola pollination and seed set. This has created quite a bit of interest from growers who have been experimenting with foliar boron applications at early-flowering. Also driving this interest, were the results…