-
This section of the Home & Garden Edition covers what to do in the event of a pesticide emergency, important contacts such as poison control, frequently asked pesticide questions, abbreviations and equivalents, submitting specimens for identification, and instructions for calibrating various types of sprayers. Beginning in 2022, the Home & Garden Edition has been updated biennially. When purchasing a product based on a first-year recommendation of the Handbook, check the current product label before purchase to be sure it is still labeled for the use for which you are buying it. For pesticide products you have on hand from earlier purchases, you are allowed to use them until they are depleted without penalty under the law. Always follow label instructions before use. Contact the product’s manufacturer for the most up-to-date label.
|
-
SB 48-01
Introduction and Table of Contents
Beginning in 2022, the Home & Garden Edition has been updated biennially. When purchasing a product based on a first-year recommendation of the Handbook, check the current product label before purchase to be sure it is still labeled for the use for which you are buying it. For pesticide products you have on hand from earlier purchases, you are allowed to use them until they are depleted without penalty under the law. Always follow label instructions before use. Contact the product’s manufacturer for the most up-to-date label.
|
-
In this video, you will learn how to judge the optimum maturity of strawberries for harvest and how to identify the main quality attributes that are important for maximum postharvest shelf life.
|
-
AP 129-2
2024 Ag Snapshots
Ag Snapshots is a brief focus on Georgia’s agricultural industry and are based on the Georgia Farm Gate Value Report from the previous year with helpful infographics and maps. Years prior to 2023 can be accessed on the Agribusiness and Economic Development publications site: https://caed.uga.edu/publications/georgia-agricultural-statistics.html
|
-
C 1303
Muscadine Grape Management
This phenology-based muscadine grape management poster provides a reference for sound viticultural, disease, and insect management practices in a digestible format. Produced in cooperation with University of Tennessee, North Carolina State University, University of Arkansas, and Auburn University. A publication of the Southern Region Small Fruit Consortium.
|
-
C 1300-02
Cross-Contamination
Cross-contamination, resulting in foodborne pathogen contamination of small fruits, can occur at any point throughout production and post-harvest handling. This video discusses techniques and best practices for growers and packers to ensure the production of safe, high-quality small fruits. This video was produced in collaboration with the Auburn Department of Horticulture.
|
-
Additional author: Mengmeng Gu, Professor, Colorado State University Department of Horticulture and Landscape Architecture.
Container substrates must fulfill several functions for plant growth: create a suitable environment for root growth, physically support them, hold nutrients and water, and enable gas exchange between the roots and the atmosphere. Suitable physical and chemical container substrates’ properties facilitate these functions.
The physical properties of container substrates include air space (%), container capacity (%), total porosity (%), bulk density (g/cm3), and water holding capacity. Air space measures the proportion of air-filled large pores (macrospores) after drainage. Air space influences gas exchange and water holding capacity. Container capacity measures the maximum percentage volume of water a substrate can hold after drainage. Total porosity equals container capacity plus air space, and it measures the substrate volume that holds water and air. Bulk density measures how much one unit of the substrate weighs. Water holding capacity measures the container substrate’s ability to physically hold water against gravity; its maximum value equals container capacity.
Biochar can be derived from various feedstocks, processed under different pyrolysis temperatures, and subjected to various pre- or posttreatments, which can lead to dissimilar physical properties that affect the container substrate’s physical properties. Adding biochar may affect air space, container capacity, total porosity, and bulk density with variable effects. For instance, substituting peat moss with 50% green waste biochar (by volume) did not affect total porosity and container capacity, but significantly decreased air space, which was still in the optimal range (15%–30%) for container substrates. Similarly, a peat-moss-based substrate’s total porosity decreased with the increased addition of pelleted biochar. However, adding deinking sludge biochar increased the total porosity and air space of the container substrate.|
-
C 1292-03
Biochar Basics: Effects on Plant Disease
Additional author: Mengmeng Gu, Professor, Colorado State University Department of Horticulture and Landscape Architecture.
How does biochar play a role in a plant-disease system? Briefly, before the pathogen infects plants, biochar can improve plant growth by increasing water and nutrient uptake, a healthier plant may be more resistant to attack. On the other hand, after a pathogen infects the plants, biochar could absorb the toxins, enzymes, and other compounds produced by pathogens.
Certain types of biochar could contain chemical compounds which is bad for pathogen growth. When incorporating this biochar into the substrate, the growth environment may become toxic to pathogens, so they cannot grow well enough to attack plants. For instance, eucalyptus biochar water extracts were found to inhibit Pythium growth in a lab setting. This finding indicates that substrate containing certain chemical extracts may impede plant infection by inhibiting the growth of Pythium (Bonanomi et al., 2015). After a pathogen infects a plant, biochar’s porous structure can absorb the toxins, enzymes, and other compounds produced by pathogens. Many types of biochar can improve plant growth, making the host plant stronger to fight against pathogens, thus reducing disease occurrence.|