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Crop protection


'BotaniGard provides biological support’

Crop protection for mandevilla

Keeping the white fly population under controlhas been a challenge for many years for Theo van Neerven of Neervenplant in Helenaveen, The Netherlands. Having tested various strategies, a combination of biological predators and a space treatment with BotaniGard proved to be the solution."To do something that.....

June 7, Niagara Falls

CAN (ON): Greenhouse IPM researchers gather at grower session

Have pressing pest management questions you can’t get answered? Looking to see what new strategies are coming down the IPM pipeline? Then come to the Grower Session of the IOBC Canada 2017 meeting and network with world leaders in the field of Greenhouse IPM. It’s only the second time this event has been.....

US: BioWorks launches new OMRI-Listed biofungicide for botrytis control

BioWorks has launched BotryStop, a new organic biological fungicide developed specifically for the control of pathogens such as Botrytis cinerea, Sclerotinia sclerotiorum and Monilinia spp. It is based on the naturally occurring non-pathogenic saprophytic fungus Ulocladium oudemansii (Strain U3) which.....

by Mary Hausbeck

Phytophthora rot on ornamentals

Phytophthora (Photo 1) is a water mold and can be a particularly devastating and difficult-to-control problem, especially under wet conditions. It can spread quickly in a greenhouse, especially in flood floor and hydroponic systems. Two types of Phytophthora (Phytophthora nicotianae and Phytophthora.....

e-GRO Alert by W. Garrett Owen, Jan Byrne and Fred Warner

Tobacco Rattle Virus in peony

Light and dark green mosaic (mottled) patterns and ringspots were observed on peony leaves. This Alert will describe a common ringspot virus, Tobacco Rattle Virus (TRV).by W. Garrett Owen (Michigan State University), Jan Byrne (Plant Pathologist, Michigan State University) and Fred Warner (Nematode.....

New Zealand: Myrtle rust continues to spread

Four further Taranaki properties have tested positive for myrtle rust, bringing the number of positive locations nationally to 12.At this time, the disease has only been recorded in 2 regions – Northland and Taranaki. 8 of the affected properties are plant nurseries or retailers/distributors, and it has been.....

Isagro USA focuses on bio-solutions for crop production challenges

Isagro USA, Inc. is launching this year an ever-expanding bio-solutions portfolio designed to serve growers seeking to meet consumer demand for more bio-based and organic food production.“Building a dynamic portfolio of bio-based and organic crop protection and plant beneficial nutrient products has been our.....

by Mary Hausbeck

Rhizoctonia rot on ornamentals

The Rhizoctonia solani fungus typically causes a dull brown to dark brown rot on lower plant stems (Photo 1). In severe cases it can also destroy the root system of an infected plant, resulting in wilting and plant death (Photos 2-6). This pathogen can thrive in wet/dry or warm/cool conditions. Sanitation is.....

Scotland and China to cooperate on plant conservation

With over 20 per cent of plant species considered at risk of extinction, and many tens of thousands still awaiting discovery, three world-leading research institutes in Scotland and China have signed landmark agreements to address the challenges of understanding and conserving plant diversity.Species.....

New Zealand: Myrtle rust found in another two properties

Two further properties in Taranaki have been confirmed positive with myrtle rust infection. Both are plant businesses – one a further nursery in Waitara and the other a garden centre in New Plymouth.This brings the total number of known affected properties to 5 – a nursery and adjoining property in Kerikeri,.....

Certis Europe expands Eradicoat usage

Certis Europe has now received approval for its biorational product, Eradicoat, containing maltodextrin, for the control of white fly and spider mite in both protected and outdoor crops in the UK, Belgium, Netherlands and Ireland and for protected crops only in Spain and France. Applications are ongoing in.....

Australia redoubles bee protection efforts

Australia’s busiest pollinators have received a boost after the official launch a multi-faceted effort to maintain the health of the nation’s bees along with the country’s $1.8 billion pollination-reliant horticulture and grain industries.Horticulture Innovation Australia, the Australian Honey Bee Industry.....

June 1-August 31

Biological control for greenhouse growers summer course

Registration for the summer session of the Biological Control for Greenhouse Growers Course in Michigan State University Extension’s College of Knowledge is now open. Growers or other interested professionals can sign up until May 31, 2017, and will have from June 1 through Aug. 31, 2017, to complete.....

by Sarah Jandricic

Canada (ON): Botrytis bumming you out?

With the intense period of rain we just had, and with more rain coming on Friday, it’s time to think about Botrytis control and prevention. One of the most common and destructive diseases of greenhouse crops, outbreaks usually follow periods of cool, damp, cloudy weather. Unfortunately, I can’t order up more.....