Recently we have received several greenhouse plant samples in the Penn State Plant Diagnostics Lab with root problems. The common theme is over-fertilization, and some were also infected with Pythium root rot. Pythium is aggravated by over-fertilization. Symptoms include stunted and yellowed plants, stubby roots, dead darkened roots, and dying plants.
Imagine leaving a hose running into a tank and returning later to find the tank empty instead of full. At best this would be a mystery at worst a serious problem.
The Chesapeake Bay Program has launched a new, improved version of its website. The new Bay Program website provides students, educators and members of the public with the latest information about Bay science, wildlife, pollution pressures and restoration efforts. The new website comes complete with countless new resources, including an improved photo library with hundreds of high-resolution images of the Bay and its watershed, wildlife and pollution problems. Alliance for the Chesapeake Bay staff have been instrumental in building the content featured by the site.
This week's guest blog was written by Tom Smith, West Nile Virus Program Administrator, in the Penn State York County Extension Office. With the early detection of West Nile Virus in a horse already, this may be an active year for mosquitoes. We decided to feature a monthly blog article about a West Nile Virus topic through the Fall.
Many people with a private water well have never or seldom have their well water tested. Pre-drilling water testing provides homeowners with useful information on their water wells as well as helpful research data.
A new program designed to provide a helping hand for beginning farmers is set to debut in the coming year.
As indicated in yesterday's thinning advisory for Southeastern Pennsylvania, it is important to adjust for changes in the weather forecast. Here is the carbon balance model for this morning.
The diameter of the largest fruits in many orchards is in the 12-14 mm range, meaning that we are in the advanced stages of the primary thinning window.
Stewart's wilt of sweet corn can cause significant damage. The extent is directly correlated to winter temperatures. What can we expect in 2012?
This past summer, fall, winter and now this spring - have been unusual. One item that can help growers deal with the weather changes, at least for plants that are close to the ground, is a floating row cover. There are many different types from which to choose.
Beneficial insects do a lot of pest management naturally, with little help from us.
The National Organic Program has recently published a final rule: Amendments to the National List of Allowed and Prohibited Substances (Crops and Processing). A brief summary of the final rule is included below.
What do you think of when you hear the term "Pesticide Use?" You probably only think about pesticide application. However, there is much more to SAFE and effective pesticide use than just the application process.
The complete guide or individual chapters from the publication Guide to Financing the Community Supported Farm are now available.
Twenty six aspiring and beginning farmers gathered in West Chester on Saturday, April 21 for the Breaking the Barriers: Access to Land, Capital, and Equipment workshop co-presented by Penn State Extension and Pennsylvania Farm Link. Our gracious presenters shared their presentations for those who were not able to attend the workshop.
PASA's Land Leasing Program Debuts New Website - Reprinted with permission from the PASA Passages Newsletter Number 95, March/April 2012 Edition. By Ann McGinnis, Eastern Region Program Assistant
Last week, we introduced you to research that members of Penn State Extension conducted in 2010 to better understand how consumers use social media to engage with food retailers. This week we are providing some of the highlights of the data related to Facebook.
Row cover, a spun fabric-like material can be used to protect from the frost, and keep bugs out. It also speeds up spring plant growth.
Over the last 3 weeks, the Plant Disease Clinic has received many greenhouse samples with root problems from a wide variety of plant material.
The Cornell MaluSim Model can be used to assess potential thinning response of apple trees. Environmental and physiological factors that are considered in the model include: leaf area development, light interception, daily canopy photosynthesis, respiration rate and dry matter partitioning within the tree.