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Cómo Diagnosticar un Problema en la Planta – 101
Cómo Diagnosticar un Problema en la Planta – 101 - Articles Articles
¿Hay algún problema con su planta? ¿Cuál es la causa? No asuma que sabe la respuesta y accidentalmente trate el problema equivocado. More
Sclerotia of Slerotinia White Mold (Timber Rot) on a tomato stem.
Frequently Asked Questions about Timber Rot on Tomato - Articles Articles
I lost a lot of tomato plants to Sclerotinia/White mold/Timber Rot this past season, while I’ve seen some in past years, why was it so bad this season? More
Downy mildew on pumpkin. Photo: Beth K. Gugino, Penn State
Vegetable Disease Updates: August 30, 2017 - Articles Articles
Within the past week, there have been three separate reports of downy mildew on jack-o-lantern pumpkin in eastern Virginia. More
Symptoms of potato blackleg. Photo: Bob Leiby, PA Coop Potato Growers
Best Management Practices for Soft Rot Associated with Dickeya in Potatoes - Articles Articles
An aggressive form of black leg/soft rot caused by the bacterial pathogen Dickeya dianthicola has been confirmed in potato seed lots being grown in Northeast regions including Pennsylvania. More
Tomato-Potato Late Blight in the Home Garden
Tomato-Potato Late Blight in the Home Garden - Articles Articles
This article describes tomato-potato late blight, including symptoms; disease development, cycle, and management; and management after harvest. More
Bacterial wilt of pumpkin (Photo: Beth K. Gugino)
Why Are My Cucurbits Wilting? - Articles Articles

Why Are My Cucurbits Wilting?

Beth K. Gugino, Ph.D.

There are a number of diseases like bacterial wilt, cucurbit yellow vine decline and Fusarium wilt as well as abiotic stresses such as water logged soils that can cause cucurbits to wilt. More
Tomato late blight. Photo credit Beth Gugino, Penn State Plant Pathology.
Plant Disease Basics - The Disease Triangle - Articles Articles
Disease management begins with the fundamental understanding the three factors must be present and interact for disease to develop. More
Helping Realtors Understand On-Lot Wastewater Inspections
Helping Realtors Understand On-Lot Wastewater Inspections - Articles Articles
As part of the “home inspection” process, realtors need to understand who should conduct on-lot disposal system inspections and what outcomes to expect. More
Figure 1. Typical bioretention cell.
Rain Gardens (BioRetention Cells) - a Stormwater BMP - Articles Articles
Design guidance provided for engineers and planners on how to properly develop a bioretention cell. More
Infiltrating Stormwater
Infiltrating Stormwater - Articles Articles

Infiltrating Stormwater

Albert Jarrett, Ph.D.

Guidance to stormwater designers about assessing a potential stormwater infiltration site to determine the rate and volume of stormwater that can be expected to infiltrate into the soil. More
Rainwater Cistern (image credit - Ecology Center on flickr.com CC BY 2.0)
Cisterns for Capturing and Reusing Stormwater - Articles Articles
Guidance provided on how to develop effective runoff capture and reuse systems as part of a stormwater management plan. More
Selecting a Faircloth Skimmer
Selecting a Faircloth Skimmer - Articles Articles

Selecting a Faircloth Skimmer

Albert Jarrett, Ph.D.

A skimmer is a basin dewatering control device that withdraws water from near the basin’s water surface, removing the highest quality water from the basin for delivery to the uncontrolled environment. More
Creating an Infiltration Surface
Creating an Infiltration Surface - Articles Articles

Creating an Infiltration Surface

Albert Jarrett, Ph.D.

Information for contractors to properly build an infiltration surface; the soil surface where stormwater or wastewater is expected to enter the soil profile. More
Controlling the Dewatering of Sedimentation Basins
Controlling the Dewatering of Sedimentation Basins - Articles Articles
Design criterion provided that can be used by engineers to properly size various dewatering control features used as part of the basin’s principal spillway. More
Rock Swale
Improving Stormwater Quality - Articles Articles

Improving Stormwater Quality

Albert Jarrett, Ph.D.

Various low impact development (LIDs) practices and how effective they are at reducing pollutants in stormwater. More
Figure 1. Green roof profile schematic including materials typically included in construction.
Green Roofs for Stormwater - Articles Articles

Green Roofs for Stormwater

Albert Jarrett, Ph.D.

Guidance on how green roofs can be constructed and how they can be expected to contribute to solving stormwater problems. More
Wet Basements
Wet Basements - Articles Articles

Wet Basements

Albert Jarrett, Ph.D.

Understanding and correcting wet basements is a key topic for homeowners. More
Riego por goteo de pimientos.
Riego por Goteo para la Producción Vegetal - Articles Articles

Riego por Goteo para la Producción Vegetal

Jayson K. Harper, Ph.D., Lynn Kime, Albert Jarrett, Ph.D., Michael Orzolek, Ph.D.

La irrigación o riego por goteo o chorreo es un método muy eficiente para la aplicación de agua y nutrientes para los cultivos. More
Drip irrigation of bell peppers
Drip Irrigation for Vegetable Production - Articles Articles

Drip Irrigation for Vegetable Production

Jayson K. Harper, Ph.D., Albert Jarrett, Ph.D., Michael Orzolek, Ph.D.

Drip or trickle irrigation is a very efficient method of applying water and nutrients to crops. More
Potato Cultivars Suggested for Pennsylvania and Resistance Characteristics
Potato Cultivars Suggested for Pennsylvania and Resistance Characteristics - Articles Articles
Host resistance is an important tool for managing diseases. Potato cultivars vary in susceptibility to common diseases including late blight, early blight and common scab. More
Bacterial Spot of Tomato: Biology and Management
Bacterial Spot of Tomato: Biology and Management - Articles Articles
Bacterial spot is becoming an increasingly devastating disease of tomato. The pathogen can directly damage the fruit, and severe foliar infection can lead to defoliation. More
Cucurbit Yellow Vine Decline in Pumpkins
Cucurbit Yellow Vine Decline in Pumpkins - Articles Articles
A number of different diseases including bacterial wilt and Fusarium wilt can cause cucurbits collapse in the field. Unfortunately, cucurbit yellow vine decline is another one to be concerned about. More
Gray fuzzy sporulation characteristic of leaf mold on the underside of a tomato leaf. Yellow chlorotic spots will be visible on the upper leaf surface.
Leaf Mold on Tomato: Host Resistance is a Management Option - Articles Articles
Leaf mold is not just a high tunnel disease, it can also be a problem in the field when conditions are favorable. More
Septic Tank Exit Filters Septic Tank Exit Filters - Articles

Septic Tank Exit Filters

Albert Jarrett, Ph.D.

Adding a filter to the exit baffle of a septic tank serves as the final opportunity to capture and remove partially settled particles in the wastewater. More
Hydraulic Load Test Hydraulic Load Test - Articles

Hydraulic Load Test

Albert Jarrett, Ph.D.

The Hydraulic Load Test is included as a component of the PSMA On-Lot Wastewater Inspection. More
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