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Applying Plant Growth Retardants Pocket Reference
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Applying Plant Growth Retardants Pocket Reference

This brochure is a general reference to help greenhouse producers make basic decisions about applying plant growth retardants (PGRs) in greenhouse settings. The full version of this publication, Commercial Greenhouse and...

Commercial Greenhouse and Nursery Production: Alkalinity Management in Soilless Substrates
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Commercial Greenhouse and Nursery Production: Alkalinity Management in Soilless Substrates

Growers often do not have a clear understanding of the underlying causes behind increased substrate pH—water alkalinity, rather than water pH, is typically the source of the problem. This publication helps growers ...

Commercial Greenhouse and Nursery Production: Alternative Options for Invasive Landscape Plants
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Commercial Greenhouse and Nursery Production: Alternative Options for Invasive Landscape Plants

This publication lists potential alternatives to some of the most notorious and damaging invasive plants commonly used in Indiana landscapes. Unlike other resources, this list includes both native and non-native species....

Commercial Greenhouse and Nursery Production: Census of Agriculture Reveals Declines in Floriculture Producers
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Commercial Greenhouse and Nursery Production: Census of Agriculture Reveals Declines in Floriculture Producers

The U.S. Department of Agriculture National Agriculture Statistics Service (USDA-NASS) released the 2007 Census of Agriculture on February 4, 2009. State and federal policy makers, researchers, extension personnel, growe...

Commercial Greenhouse and Nursery Production: Controlling Algae in Irrigation Ponds
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Commercial Greenhouse and Nursery Production: Controlling Algae in Irrigation Ponds

Because water is so essential, commercial greenhouse and nursery operations need to maintain water supplies of sufficient quantity and quality to produce plant material profitably. This publication is not a comprehensive...

Commercial Greenhouse and Nursery Production: Drought-tolerant Plants
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Commercial Greenhouse and Nursery Production: Drought-tolerant Plants

Some locations - whether several square miles or a few square feet - are more prone to drought than others. For such locations, it is important to select plants that can tolerate dry conditions. This publication describe...

Commercial Greenhouse and Nursery Production: Evaluating Container Substrates and Their Components
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Commercial Greenhouse and Nursery Production: Evaluating Container Substrates and Their Components

One of the most important cultural considerations and investments you can make when you want to produce a successful greenhouse or nursery crop is to select the best substrate components or pre-formulated substrates (als...

Commercial Greenhouse and Nursery Production: Flower Induction of Annuals
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Commercial Greenhouse and Nursery Production: Flower Induction of Annuals

If annual bedding plants have even just a few flowers, customers get an idea of what the plant looks like in full bloom, which can increase impulse purchases. However, to be able to deliver to retailers annual bedding pl...

Commercial Greenhouse and Nursery Production: Lowering Soil pH for Horticulture Crops
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Commercial Greenhouse and Nursery Production: Lowering Soil pH for Horticulture Crops

Soil pH is important because it affects the availability of nutrients a plant needs to grow and thrive. This publication explains when lowering soil pH is important for commercial producers and recommends practices to sa...

Commercial Greenhouse and Nursery Production: Managing Photoperiod in the Greenhouse
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Commercial Greenhouse and Nursery Production: Managing Photoperiod in the Greenhouse

In greenhouse and nursery production, photoperiod can influence many aspects of plant growth and development including dormancy, storage organ formation, and (most importantly for many greenhouse producers) flowering. Th...

Commercial Greenhouse and Nursery Production: Poinsettia Propagation
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Commercial Greenhouse and Nursery Production: Poinsettia Propagation

Successful poinsettia propagation begins with high-quality cuttings and an ideal rooting environment. This publication describes optimal greenhouse conditions and management practices for improving propagation success an...

Commercial Greenhouse and Nursery Production: Sanitation for Disease and Pest Management
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Commercial Greenhouse and Nursery Production: Sanitation for Disease and Pest Management

Greenhouse growers are often concerned about the costs of managing pests and pathogens. Proper greenhouse sanitation is a key component in reducing those costs and improving plant quality. This publication discusses gene...

Commercial Greenhouse and Nursery Production: Soil pH
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Commercial Greenhouse and Nursery Production: Soil pH

Plants obtain nearly all their nutrients from the soil, but not all the nutrients present in the soil are accessible to plants. That's because soil pH affects the form and, therefore, solubility of nutrients. This public...

Commercial Greenhouse and Nursery Production: Water-soluble and Controlled-release Fertilization
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Commercial Greenhouse and Nursery Production: Water-soluble and Controlled-release Fertilization

Because the substrates used in commercial greenhouses do not contain soil, they lack many of the nutrients in sufficient quantity to maximize plant growth and development. This publication examines the basics of greenhou...

Commercial Greenhouse Production: Applying Plant Growth Retardants for Height Control
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Commercial Greenhouse Production: Applying Plant Growth Retardants for Height Control

Controlling plant size is one of the most important aspects of greenhouse crop production. An alternative, effective strategy for controlling plant height is to use chemical plant growth retardants (PGRs). The goals of t...

Commercial Greenhouse Production: Disease-resistant Annual and Perennial Production
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Commercial Greenhouse Production: Disease-resistant Annual and Perennial Production

One of the best ways to prevent serious plant disease outbreaks in the greenhouse, nursery, or landscape is to grow plants with demonstrated disease resistance. This publication describes disease resistance in plants, pr...

Commercial Greenhouse Production: Measuring Daily Light Integral in a Greenhouse
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Commercial Greenhouse Production: Measuring Daily Light Integral in a Greenhouse

In commercial greenhouses, several strategies can be used to help properly manage light levels throughout the day and seasonally. This publication examines the characteristics of greenhouse lighting and describes one man...

Commercial Greenhouse Production: pH and Electrical Conductivity Measurements in Soilless Substrates
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Commercial Greenhouse Production: pH and Electrical Conductivity Measurements in Soilless Substrates

Monitoring the pH and electrical conductivity (EC) of growing substrates is a way to correct issues before they become problems that damage crops. This publication recommends best practices for establishing a pH and EC t...

Compendium Of Herbicide Adjuvants, 2016 Edition
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Compendium Of Herbicide Adjuvants, 2016 Edition

This is a joint publication of Purdue Extension and Southern Illinois University. This is the 13th edition of the biennial publication, which was previously published by Southern Illinois. This edition contains 780 en...

Compendium Of Herbicide Adjuvants, 2016 Edition
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Compendium Of Herbicide Adjuvants, 2016 Edition

This is a joint publication of Purdue Extension and Southern Illinois University. This is the 13th edition of the biennial publication, which was previously published by Southern Illinois. This edition contains 780 en...

Crop Rotation on Organic Farms A Planning Manual
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Crop Rotation on Organic Farms A Planning Manual

This manual provides an in-depth review of the applications of crop rotation-including improving soil quality and health, and managing pests, diseases, and weeds. Consulting with expert organic farmers, the authors sh...

Disease Management Strategies for Horticultural Crops: Pythium Root Rot of Herbaceous Plants
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Disease Management Strategies for Horticultural Crops: Pythium Root Rot of Herbaceous Plants

Several species of Pythium attack plant roots, and cause cutting rots, stem rots, and foliar blight under the right conditions. These pathogens are a significant problem in the greenhouse and nursery industries....

Driftwatch: Watch Out for Grapes
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Driftwatch: Watch Out for Grapes

Pesticide drift can severely damage non-target crops. This Driftwatch publication addresses drift in grapes. It examines products of special concern, injury symptoms and potential impact, and alternatives and ways to avo...

Fall Webworm
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Fall Webworm

In late summer, the outside branches of many of the more commonly planted deciduous trees can become covered with webs produced by fall webworm caterpillars. When unchecked by the wide variety of insects and birds that ...

Financial and Tax Aspects of Tree Planting
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Financial and Tax Aspects of Tree Planting

This publication helps hardwood producers understand the tax and financial advantages (and disadvantages) related to their planting operations....

Guide to Information for Starting in the Nursery Business
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Guide to Information for Starting in the Nursery Business

This is a reference list of informative publications which can provide answers to many of the questions which arise when considering a new nursery business. ...

Guide to Production Information for Commercial Floriculture Growers
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Guide to Production Information for Commercial Floriculture Growers

This publication provides a reference list of informative publications for experienced and new commercial producers of floricultural crops, with accompanying descriptions. ...

Guide to Production Information for the Commercial Nursery Crop Grower
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Guide to Production Information for the Commercial Nursery Crop Grower

This publication is a reference list of informative publications which can provide answers and guidance to the commercial nursery grower on topics from propagation to pest management. ...

List of Assistance and Regulatory Agencies for Starting in the Nursery Business
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List of Assistance and Regulatory Agencies for Starting in the Nursery Business

This publication is a listing of Federal and Indiana state government agencies that regulate various activities involved in operating a landscape plant nursery. ...

Living with Insects Blog
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Living with Insects Blog

The author uses this blog in conjunction with a class as a forum for exploring all subjects touching upon insects and arthropods. Comments are encouraged, but moderated, to encourage a thoughtful community. The author, J...

Measuring Daily Light Integral (DLI)
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Measuring Daily Light Integral (DLI)

This brochure provides basic information about measuring Daily Light Integrals (DLI) in greenhouses, including DLI requirements for certain crops.

The full version of this publication is available in

Produccion Comercial de Cultivos Bajo Invernadero Y Viveros: El control de Algas en las Lagunas de Riego
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Produccion Comercial de Cultivos Bajo Invernadero Y Viveros: El control de Algas en las Lagunas de Riego

Dado que el agua es un elemento esencial, invernaderos comerciales y operaciones de viveros necesitan mantener el abastecimiento de agua en cantidad y calidad suficiente para producir plantas de manera rentable. Esta pub...

Produccion Comercial de Cultivos Bajo Invernadero Y Viveros: Manejo de la Alcalinidad en Sustratos Hidropónicos
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Produccion Comercial de Cultivos Bajo Invernadero Y Viveros: Manejo de la Alcalinidad en Sustratos Hidropónicos

Productores de invernaderos y viveros muchas veces asumen que la presencia de hojas amarillas o pálidas son signos de deficiencias nutricionales. A veces, sin embargo, el problema se debe a la ausencia de nutrientes...

Produccion Comercial de Cultivos Bajo Invernadero Y Viveros: Medición de Luz Diaria Integrada en Invernaderos
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Produccion Comercial de Cultivos Bajo Invernadero Y Viveros: Medición de Luz Diaria Integrada en Invernaderos

En la producción comercial bajo invernadero varias estrategias pueden emplearse para manejar de manera adecuada los niveles de luz a lo largo del día y según las temporadas del año. Esta publicaci...

Produccion Comercial de Cultivos Bajo Invernadero Y Viveros: Medición de pH y Conductividad Eléctrica en Sustratos
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Produccion Comercial de Cultivos Bajo Invernadero Y Viveros: Medición de pH y Conductividad Eléctrica en Sustratos

El monitoreo del pH y la conductividad eléctrica (CE) de medios de crecimiento nos da la habilidad de corregir este tipo de inconvenientes antes de que se conviertan en problemas que pudieran perjudicar a los cultiv...

Produccion Comercial de Flores en Invernadero: Propagacion de Poinsettias (Flores de Pascua)
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Produccion Comercial de Flores en Invernadero: Propagacion de Poinsettias (Flores de Pascua)

La propagacion exitosa de poinsettias (flores de pascua o nochebuena) empieza con una alta calidad de los esquejes y un ambiente ideal para el desarrollo radicular. Esta publicacion describe cuales son las condiciones op...

Purdue Tree Doctor (iOS App)
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Purdue Tree Doctor (iOS App)

This app (which is part of the Purdue Plant Doctor series) can help you identify and manage problems on trees. Using the app,...

Purdue Tree Doctor (iOS App)
ID-452-APP

Purdue Tree Doctor (iOS App)

This app (which is part of the Purdue Plant Doctor series) can help you identify and manage problems on trees. Using the app,...

Starting in the Nursery Business
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Starting in the Nursery Business

This publication discusses starting in the nursery business, including what you'll need, developing a nursery business plan, selecting a specific nursery site, nursery design and space requirements, and labor and capit...

Tree Diseases: White Pine Decline in Indiana
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Tree Diseases: White Pine Decline in Indiana

White pine trees are a common component of Midwest landscapes. Sometimes, these trees die unexpectedly and rapidly, seemingly without a specific cause. This unpredictable problem is called white pine decline. The publ...

Weed Competition Control in Hardwood Plantations
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Weed Competition Control in Hardwood Plantations

A publication for landowners with wooded areas. Covers weed control strategies and related issues....