June 2024 - 26

BIOLOGICALS
Plant Health &
BY MARK FREEMAN, MICHAEL BROWNBRIDGE
AND JULIE GRAESCH
B
iological control refers to the use of natural
enemies to control pests and diseases. Biocontrol
agents include predators and parasitoids
(macroorganisms), as well as microorganisms (microbial
biopesticides).
Biopesticides are " pesticides derived from natural
materials, " according to the EPA, and are categorized
according to the source or type of active component in the
product. The biochemical pesticide group includes plant
extracts like azadirachtin and minerals like potassium
bicarbonate, while the microbial biopesticide group
includes products based on living microbes, primarily
fungi, bacteria and viruses.
Both groups contain products that are used for
arthropod or disease management and have unique (often
multiple) modes of action. The safety of the product allows
them to be used alongside other biocontrol agents in
integrated pest and disease management programs.
BIOFUNGICIDES
Microbial fungicides containing different species of
fungi (e.g., Trichoderma spp.) or bacteria (e.g., Bacillus
and Streptomyces spp.) are registered for prevention of
soilborne diseases. The organisms work in various ways to
protect plants by competing with pathogens for space and
resources at the root surface. Production of metabolites
from the microbes inhibit germination or growth of
26
JUNE 2024 GPNMAG.COM
BIOLOGICALS
Natural enemies and materials for disease management in the greenhouse
Healthy white roots following soil treatment with Trichoderma
(RootShield PLUS+). The Trichoderma strains in RootShield are
known to promote healthy root growth and development, in addition
to protecting against soil diseases. Photo courtesy of BioWorks.
pathogens and some, like Trichoderma harzianum T22,
can actively parasitize pathogens like Rhizoctonia.
Others activate plant defense pathways as they grow on
the roots. However, not all Trichoderma or Bacillus spp.
have these traits. Those in EPA-registered biofungicides
have been specifically selected for their ability to protect
plants against disease.
Products based on Bacillus and Streptomyces are
registered for foliar diseases. These contain viable spores
and bioactive metabolites (such as lipopeptides) produced
http://www.GPNMAG.COM

June 2024

Table of Contents for the Digital Edition of June 2024

Table of Contents
Editor's Report | Labor updates
Legislation | Tackling ag labor
Management | All-in-one installation
Labor | Labor survey report
Labor | New H-2A worker protections will start this year
CAST 2024 | CAST crazes of 2024
Pest & Disease Management | Start clean, stay clean
Biologicals | Plant health and biologicals
Dr. Bugs | Biological control agent of Western flower thrips
Forty Under 40 Perspectives | Remote Sales success
Culture Report | Sparkling new Princettia varieties
Duets | Plant pathology perspective from floriculture royalty
AmericanHort | Dive deeper and gain an edge
Product Marketplace
Industry News
Classifieds/Ad Index
June 2024 - 1
June 2024 - 2
June 2024 - Table of Contents
June 2024 - Editor's Report | Labor updates
June 2024 - 5
June 2024 - 6
June 2024 - 7
June 2024 - Legislation | Tackling ag labor
June 2024 - 9
June 2024 - Management | All-in-one installation
June 2024 - 11
June 2024 - 12
June 2024 - 13
June 2024 - Labor | Labor survey report
June 2024 - 15
June 2024 - Labor | New H-2A worker protections will start this year
June 2024 - 17
June 2024 - CAST 2024 | CAST crazes of 2024
June 2024 - 19
June 2024 - 20
June 2024 - 21
June 2024 - 22
June 2024 - 23
June 2024 - Pest & Disease Management | Start clean, stay clean
June 2024 - 25
June 2024 - Biologicals | Plant health and biologicals
June 2024 - 27
June 2024 - 28
June 2024 - 29
June 2024 - Dr. Bugs | Biological control agent of Western flower thrips
June 2024 - 31
June 2024 - Forty Under 40 Perspectives | Remote Sales success
June 2024 - 33
June 2024 - Culture Report | Sparkling new Princettia varieties
June 2024 - 35
June 2024 - 36
June 2024 - 37
June 2024 - Duets | Plant pathology perspective from floriculture royalty
June 2024 - 39
June 2024 - 40
June 2024 - 41
June 2024 - AmericanHort | Dive deeper and gain an edge
June 2024 - 43
June 2024 - Product Marketplace
June 2024 - 45
June 2024 - 46
June 2024 - 47
June 2024 - Industry News
June 2024 - 49
June 2024 - Classifieds/Ad Index
June 2024 - 51
June 2024 - 52
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https://www.nxtbook.com/greatamericanmediaservices/GPN/february-2024
https://www.nxtbook.com/greatamericanmediaservices/GPN/january-2024
https://www.nxtbook.com/greatamericanmediaservices/GPN/2024-guide-to-cannabis-production
https://www.nxtbook.com/greatamericanmediaservices/GPN/november-december-2023
https://www.nxtbook.com/greatamericanmediaservices/GPN/october-2023
https://www.nxtbook.com/greatamericanmediaservices/GPN/new-varieties-digital-guide-2024
https://www.nxtbook.com/greatamericanmediaservices/GPN/september-2023
https://www.nxtbook.com/greatamericanmediaservices/GPN/august-2023
https://www.nxtbook.com/greatamericanmediaservices/GPN/july-2023
https://www.nxtbook.com/greatamericanmediaservices/GPN/big-grower-july-2023
https://www.nxtbook.com/greatamericanmediaservices/GPN/june-2023
https://www.nxtbook.com/greatamericanmediaservices/GPN/may-2023
https://www.nxtbook.com/greatamericanmediaservices/GPN/april-2023
https://www.nxtbook.com/greatamericanmediaservices/GPN/big-grower-april-2023
https://www.nxtbook.com/greatamericanmediaservices/GPN/2023-guide-to-hemp-production
https://www.nxtbook.com/greatamericanmediaservices/GPN/march-2023
https://www.nxtbook.com/greatamericanmediaservices/GPN/february-2023
https://www.nxtbook.com/greatamericanmediaservices/GPN/big-grower-january-2023
https://www.nxtbook.com/greatamericanmediaservices/GPN/january-2023
https://www.nxtbook.com/greatamericanmediaservices/GPN/2023-guide-to-cannabis-production
https://www.nxtbook.com/greatamericanmediaservices/GPN/november-december-2022
https://www.nxtbook.com/greatamericanmediaservices/GPN/big-grower-october-2022
https://www.nxtbook.com/greatamericanmediaservices/GPN/october-2022
https://www.nxtbook.com/greatamericanmediaservices/GPN/gpn-new-varieties-digital-guide-2023
https://www.nxtbook.com/greatamericanmediaservices/GPN/september-2022
https://www.nxtbook.com/greatamericanmediaservices/GPN/august-2022
https://www.nxtbook.com/greatamericanmediaservices/GPN/big-grower-july-2022
https://www.nxtbook.com/greatamericanmediaservices/GPN/july-2022
https://www.nxtbook.com/greatamericanmediaservices/GPN/june-2022
https://www.nxtbook.com/greatamericanmediaservices/GPN/may-2022
https://www.nxtbook.com/greatamericanmediaservices/GPN/big-grower-april-2022
https://www.nxtbook.com/greatamericanmediaservices/GPN/april-2022
https://www.nxtbook.com/greatamericanmediaservices/GPN/march-2022
https://www.nxtbook.com/greatamericanmediaservices/GPN/february-2022
https://www.nxtbook.com/greatamericanmediaservices/GPN/cannabisguide-2022
https://www.nxtbook.com/greatamericanmediaservices/GPN/hempguide-2022
https://www.nxtbook.com/greatamericanmediaservices/GPN/newvarieties-2022
https://www.nxtbook.com/greatamericanmediaservices/GPN/big-grower-january-2022
https://www.nxtbook.com/greatamericanmediaservices/GPN/january-2022
https://www.nxtbook.com/greatamericanmediaservices/GPN/december-2021
https://www.nxtbook.com/greatamericanmediaservices/GPN/big-grower-november-2021
https://www.nxtbook.com/greatamericanmediaservices/GPN/november-2021
https://www.nxtbook.com/greatamericanmediaservices/GPN/october-2021
https://www.nxtbook.com/greatamericanmediaservices/GPN/big-grower-september-2021
https://www.nxtbook.com/greatamericanmediaservices/GPN/september-2021
https://www.nxtbook.com/greatamericanmediaservices/GPN/august-2021
https://www.nxtbook.com/greatamericanmediaservices/GPN/big-grower-july-2021
https://www.nxtbook.com/greatamericanmediaservices/GPN/july-2021
https://www.nxtbook.com/greatamericanmediaservices/GPN/june-2021
https://www.nxtbook.com/greatamericanmediaservices/GPN/may-2021
https://www.nxtbook.com/greatamericanmediaservices/GPN/april-2021
https://www.nxtbook.com/greatamericanmediaservices/GPN/big-grower-march-2021
https://www.nxtbook.com/greatamericanmediaservices/GPN/march-2021
https://www.nxtbook.com/greatamericanmediaservices/GPN/february-2021
https://www.nxtbook.com/greatamericanmediaservices/GPN/cannabisguide-2021
https://www.nxtbook.com/greatamericanmediaservices/GPN/hempguide-2021
https://www.nxtbook.com/greatamericanmediaservices/GPN/newvarieties-2021
https://www.nxtbook.com/greatamericanmediaservices/GPN/big-grower-january-2021
https://www.nxtbook.com/greatamericanmediaservices/GPN/january-2021
https://www.nxtbook.com/greatamericanmediaservices/GPN/december-2020
https://www.nxtbook.com/greatamericanmediaservices/GPN/big-grower-november-2020
https://www.nxtbook.com/greatamericanmediaservices/GPN/november-2020
https://www.nxtbook.com/greatamericanmediaservices/GPN/october-2020
https://www.nxtbook.com/greatamericanmediaservices/GPN/big-grower-september-2020
https://www.nxtbook.com/greatamericanmediaservices/GPN/september-2020
https://www.nxtbook.com/greatamericanmediaservices/GPN/august-2020
https://www.nxtbook.com/greatamericanmediaservices/GPN/big-grower-july-2020
https://www.nxtbook.com/greatamericanmediaservices/GPN/july-2020
https://www.nxtbook.com/greatamericanmediaservices/GPN/june-2020
https://www.nxtbook.com/greatamericanmediaservices/GPN/may-2020
https://www.nxtbook.com/greatamericanmediaservices/GPN/april-2020
https://www.nxtbook.com/greatamericanmediaservices/GPN/californiaspringtrials-2020
https://www.nxtbook.com/greatamericanmediaservices/GPN/big-grower-march-2020
https://www.nxtbook.com/greatamericanmediaservices/GPN/march-2020
https://www.nxtbook.com/greatamericanmediaservices/GPN/february-2020
https://www.nxtbook.com/greatamericanmediaservices/GPN/cannabisguide-2020
https://www.nxtbook.com/greatamericanmediaservices/GPN/hempguide-2020
https://www.nxtbook.com/greatamericanmediaservices/GPN/big-grower-january-2020
https://www.nxtbook.com/greatamericanmediaservices/GPN/january-2020
https://www.nxtbook.com/greatamericanmediaservices/GPN/december-2019
https://www.nxtbook.com/greatamericanmediaservices/GPN/big-grower-november-2019
https://www.nxtbook.com/greatamericanmediaservices/GPN/november-2019
https://www.nxtbook.com/greatamericanmediaservices/GPN/october-2019
https://www.nxtbook.com/greatamericanmediaservices/GPN/big-grower-september-2019
https://www.nxtbook.com/greatamericanmediaservices/GPN/september-2019
https://www.nxtbook.com/greatamericanmediaservices/GPN/august-2019
https://www.nxtbook.com/greatamericanmediaservices/GPN/big-grower-july-2019
https://www.nxtbook.com/greatamericanmediaservices/GPN/july-2019
https://www.nxtbook.com/greatamericanmediaservices/GPN/june-2019
https://www.nxtbook.com/greatamericanmediaservices/GPN/may-2019
https://www.nxtbook.com/greatamericanmediaservices/GPN/april-2019
https://www.nxtbook.com/greatamericanmediaservices/GPN/californiaspringtrials-2019
https://www.nxtbook.com/greatamericanmediaservices/GPN/big-grower-march-2019
https://www.nxtbook.com/greatamericanmediaservices/GPN/march-2019
https://www.nxtbook.com/greatamericanmediaservices/GPN/february-2019
https://www.nxtbook.com/greatamericanmediaservices/GPN/undercontrol-2019
https://www.nxtbook.com/greatamericanmediaservices/GPN/big-grower-january-2019
https://www.nxtbook.com/greatamericanmediaservices/GPN/january-2019
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