At the petal fall timing on pears, all stages of pear psylla - eggs, nymphs, and adults - are usually present on infested trees. Petal fall control options are presented in this article.
As colder weather influences the general development of insect pests, the low temperatures this spring are influencing moth activities and pushing this year’s biofixes (first sustained flight of moths) to the latest dates on record. It cannot be overstated how important it is to aggressively monitor all insect pests in each orchard, especially with the additional pressure coming from brown marmorated stink bug.
A cold front has dipped into the Mid-Atlantic resulting in below average temperatures for the majority of the week. Growers are on high alert with the majority of Pennsylvania under a freeze watch advisory.
Dr. Cassandra Swett started at University of Maryland, College Park as the new grape and small fruit pathologist in May 2014, with a split research and extension appointment. Her primary functions are to develop basic and applied information that improves management of grape and small fruit diseases, provide a resource to extension specialists and educators, and communicate information on disease management to producers.
Real time disease updates are now available for berry growers. "Follow" on line or via your smart phone!
Domestic honey bee hives are down by 59% compared to 60 years ago with rapid declines over the last forty years. This long term decline was punctuated by recent average losses of 30% per winter since 2006. The populations of some native bee species may also be declining.
The strawberry bloom has begun and it’s time for fruit rot protection. Our two main targets for bloom time protection of strawberries are gray mold/ Botrytis fruit rot (Botrytis cinerea), and, if you are growing susceptible varieties like Chandler, anthracnose fruit rot (Colletotrichum acutatum).
Scab infection period today, April 20, 2015, and predicted through Thursday. Rain most likely washed off all protection that was applied prior to the rain overnight and early this morning. Growers are encouraged to spray their trees to prevent scab infection. For growers in Maryland experiencing bloom, a streptomycin spray to protect open blossoms from fire blight is warranted.
We’re experiencing a scab infection period April 17. Warm, wet weather also is a threat for stone fruit blossoms that are open. Fungicides needed today to protect against scab and blossom blight caused by brown rot.
If not already completed, copper sprays are encouraged for fungal and bacterial disease control. Apple scab primary infection has kicked off this week.
The who, what, why, when, where, how and how much of everything you need to know about fire blight and its management in preparation for the 2015 season.
The Penn State Extension Tree Fruit and Pesticide Education Teams have cooperatively produced a pocket guide to tree fruit disorders, pests and beneficials. The guide is in Spanish and English and is designed for use by orchard employees - often the first individuals to detect a new occurrence of a fruit disease or insect pest.
Pollinators need a diverse, abundant food source and a place to build their nests and rear their young. As land managers, if we keep these two elements in mind we can encourage native bee populations.
Backpack sprayers are very useful tools for crop farmers to have on hand. Whether your farm is large or small, newly established or centuries old, certified organic or conventional, there is a spot for a backpack sprayer or two on your farm. However, to make the most of a backpack sprayer, we recommend that you make some upgrades to the sprayer wand assembly and of course, keep your sprayer calibrated.
In the literature covering hard cider production apples are typically classed as either ‘dessert’ or ‘true cider’ apples. Despite this dichotomy, some ‘dessert’ varieties are reported to be useful for cider.
Penn State Extension has planned ten educational meetings for commercial tree fruit growers this spring. The meetings are being held in orchards all across the state. Growers have an opportunity to visit other commercial tree fruit operations, learn from Extension specialists who are experts in their program areas, and discuss current tree fruit issues with other growers at a critical time of the growing season.
Dormant season urea and copper sprays are recommended for decreasing available populations of apple scab spores and fire blight bacteria in the orchard for the 2015 season.
Prior to pruning peach trees this season, check for bud mortality from subzero winter temperatures.
This week at a winter meeting I was asked why poison ivy seems to be popping up in orchards where it was never seen before and in isolated spots. I suspect you will see a lot of perennial species popping up in new areas for several reasons.
The Penn State Extension Tree Fruit Production website - http://extension.psu.edu/plants/tree-fruit - has a number of useful resources for fruit growers. Check back often for the latest resources on fruit diseases; insects, mites and beneficials; and fruit culture.