Plant nutritional status is important for all phases of plant growth and has a direct effect on vigor, fruitfulness, cold hardiness, and other factors. 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…Read more about Tissue analysis for grapes and small fruit[Read More]
Crop Management
By now, most harvest is over across the state. As soon as harvest is done, it’s time to begin the renovation process. Matted row strawberry plantings must be renovated each year to establish new crowns for the following year’s crop. For best results, renovation should be started immediately after the harvest is completed to promote…Read more about Matted row strawberry renovation[Read More]
Due to the COVID crisis, most Purdue Extension meetings will be held virtually. Most Purdue Extension staff are working from home and are available to answer your questions by email, phone or through social media. Our contact information is at the end of the newsletter. July 30, 2020 Small Farm Education Field Day and Webinar…Read more about Extension Events[Read More]
Apples are 1-1/2 inch to 2 inch size where you can find them. There is plenty of scarring on fruit from the freeze. Apple scab is also common in unsprayed blocks. Pawpaw fruit are sizing and Phyllostica leaf spot is showing up. Grapes are at cluster close/berry touch so berries should no longer be susceptible…Read more about Crop Conditions[Read More]
Aphids have been a particularly challenging pest to get under control in our high tunnel strawberries this year. They quickly colonized the strawberries we had growing all winter and took off as the weather warmed (Fig. 1). In my first attempt to knock them back I introduced 2,000 lacewing larvae (22-Apr), too little too late….Read more about Organic Aphid Control Update[Read More]
Warm, wet weather has led to an uptick in bacterial shot hole disease, caused by the bacterium Xanthomonas arboricola pv. pruni (XAP). We started to see a significant uptick in shot hole on peaches, nectarine and plum before conditions turned dry. Leaves and fruit susceptibility to XAP infection decreases after pit hardening (if you were…Read more about XAPped again![Read More]
Dicamba has been in the headlines the last two weeks. In case you’ve missed it, here are the highlights: On June 3 the United States Court of Appeals for the Ninth Circuit ruled against the Environmental Protection Agency and its 2018 registration of over-the-top dicamba products Xtend, Engenia, and FeXapan and vacated their registrations. The…Read more about Dicamba Herbicide Updates and New Resources Stephen L. Meyers and Bill Johnson[Read More]
Strawberries have rich flavor; sugar, acid, phenolic content, and aroma all together make the wonderful fruit. Many factors are assumed to affect strawberry flavor. Some are supported by scientific evidence, some may be simply people’s impressions. In this article, we discuss some of the factors that are more likely to affect strawberry flavor. Locally grown…Read more about What Factors Affect Strawberry Flavor?[Read More]
Canopy management is a critical production practice for improved sunlight exposure. Pulling shoots off the top of the rows in high cordon-trained vines improves sunlight exposure to the leaves at the base of the shoots. Those basal nodes will be the ones saved as spurs next year during pruning, and sunlight improves bud fruitfulness and…Read more about Canopy management in grapes[Read More]
This article discusses the abiotic factors that may cause deformed strawberry fruit. Unevenly developed strawberry fruit (Figure 1): Frost damage is probably the most common abiotic factor causing misshapen strawberry fruit. Temperatures lower than 30°F kill the pistil (female part) of strawberry flowers. Depending on the extent of the injury and the stage of fruit development….Read more about Abiotic Factors may Cause Deformed Strawberry Fruit[Read More]