The Tools: Hand lens-10x or 15x -To correctly use a hand lens, place the lens directly in front of your eye and bring the sample you are examining towards the lens until the object comes into focus. Knife – good for cutting into stems or root tissue. Pruning shears- for taking samples – disinfest blades…Read more about Scouting 101[Read More]
Grapes
Extreme cold temperatures were experienced across the state on December 23-24th 2022 (Figure 1). Temperatures ranged from -10- -5° F across most of the state with temperatures dipping below -10°F in some areas. Since then, there have been some additional cold events, such as 7° F on January 31-February 1 and 12° F on March…Read more about Cold Weather Impact on Grapevines[Read More]
Tissue analysis is the most reliable means of determining plant nutritional status. Combined with soil testing, tissue analysis can help pinpoint the source of problems and determine what measures may be needed to ensure proper nutrition of the crop. Tissue analysis samples should be collected at the appropriate time to give the most meaningful results….Read more about Tissue Analysis for Grapes & Small Fruit[Read More]
Now is the time to start thinking about leaf removal in grapevines. Cluster zone leaf removal can lower risk of disease, increase spray penetration and even improve fruit quality. The period immediately after bloom to 3 weeks post-bloom is the most effective time for leaf removal. Leaf pulling after this time can increase the risk…Read more about Timely Management | Grapevine Leaf Removal[Read More]
Pesticide Drift Grapes are particularly sensitive to growth regulator herbicides, such as 2,4-D and dicamba, which are widely used in corn and soybean production. These products can injure the vines, significantly reduce yields and contaminate the fruit even at extremely low rates. The most common symptoms of pesticide exposure include distortion of leaves and stunting…Read more about Pesticide Drift- Watch Out For Grapes[Read More]
Purdue Fruit, Veg & Hemp Field Day Meigs Purdue Ag Center 9101 S 100 E, Lafayette, IN 47909 July 21, 2022 More details to come.