Simple but highly effective plant trap: "Every grower could apply this"

Place a few plants in rubbish bags inside an empty greenhouse, a few days before the start of the cultivation. It sounds simple, but it is also an extremely effective method of scouting out pests at the start of a cycle. Ronald Valentin of BioWorks, a Dutchman who moved to Canada in 1997, started using…

A Canadian solution against greenhouse pests

"Pests can change their behavior, but they can't avoid being eaten"

Greenhouse vegetable and flower growers are always looking for new tools to fight the pests that go after their crops. Three promising native Canadian predators are now under evaluation at Vineland as part of a project led by Rose Buitenhuis, PhD, Program Leader, Biological Crop Protection. She has been…

Photo provided by Shane Curry

Early scouting for spider mites pays off

Spider mites may seem insignificant, but they can cause extensive damage and reduce yields if not caught early in the season. The two-spotted spider mite is very tiny (0.4 mm) and usually light yellow with a distinct spot on either side of the abdomen. The spider mites have piercing-sucking mouthparts…

"Our seed cleaner increases productivity by 10%"

"We’ve seen some amazing results, particularly for crops such as Amaranth, where treated seeds have resulted in significant reductions in infections, improved germination rates, higher yield, and reduced losses,” says Dr. Katie Wilkins, Senior Plant Scientist at Vertical Future, about Zayndu’s ‘activated…

Biocaptur offers an ecological and sustainable solution for the control of "Tuta absoluta"

"Pests must be controlled early, else the progression becomes exponential"

The Tuta absoluta is considered one of the most devastating pests for tomato crops, and it has spread rapidly both in Mediterranean countries and the rest of continental Europe since it was first detected in Spain in 2006, specifically in the province of Castellon. Its impact on the plantation and its…

Biobest

Identifying and targeting cannabis aphids effectively

Wingless aphids can be quite varied in appearance - from light yellow to green or pink in color and with or without three dark dorsal stripes. Its head shape is the give-away, with two horn-like projections between the antennae and a bulbed hair on the end of each. Since cannabis aphids are sometimes…

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Research: salt stress in cannabis

For the dissection and identification of the molecular response mechanisms to salt stress in cannabis, an experiment was conducted surveying the diversity of physiological characteristics. RNA-seq profiling was carried out to identify differential expression genes and pathways which respond to salt…

How to make cannabis resilient to Botrytis?

Botrytis is a particularly tricky pathogen. In a previous article, the Delphy Team Cannabis has discussed solutions to mitigate the problem and have botrytis-free cultivation: methods for this could be a careful genetics selection, proper dehumidification, but also alternative methodologies such as UV…

Clean Crop Solutions

Collodial solution prevents diseases, ensures healthy growth

Calcium (Ca) is a secondary plant nutrient and a main ingredient in plant fertilizers. Crucial for plants, calcium prevents various types of deficiencies in plants while…

NC State Extension

The importance of yeast and mold testing in the hemp industry

Producing hemp in the Northeast comes with a unique set of challenges. Irregular weather patterns, large swings in temperature, and the ubiquitous nature of airborne yeast and mold spores coincide to create a perfect storm of microbiological problems for growers working hard all season to cultivate a…

Biobest

Autumn is key for preventative Andersoni-System introductions

Autumn is the time to introduce Andersoni-System (Amblyseius andersoni) to prevent an early outbreak of pest mites in overwintered crops next season, says Paul Koole, Biobest biological crop protection specialist. Common mite pestsSpider mites feed on a wide range of host plants where they can cause high…

The hop latent viroid threatens cannabis plants

The hop latent viroid is keeping cannabis growers awake at night. They worry that HLVd will not only cut into profits but decimate entire crops and eradicate prized heirloom varietals. As HLVd spreads across the country, and possibly the world, researchers are working overtime to figure out what it is,…

AGrowlyte

Ways that cannabis buds are ruined by mold

Whether you are growing your first cannabis plants or you consider yourself a pro, plant diseases tend to strike unexpectedly. Fungal pathogens are responsible for more than 85% of all plant diseases. These pathogens wait in the soil or in the air and sneak up on new cannabis plants or even fully grown…

CAN: Several Pythium species found to cause root rot on greenhouse-grown cannabis

There are many different reasons as to why a plant might be affected by root rot. Such a scenario is especially dreadful for cannabis growers, considering the high value of the crop, which is why Zamir K. Punja et al. have studied the causes of the emergence of root rot in greenhouse-grown cannabis. They…

Sam Jones with IPS:

"Alternative tools to manage insect pest outbreaks have never been more important"

Crop protection is vital for every grower; you do not put all that effort into growing your crops just for them to get eaten or get ill. One method to fight pests is pheromones. International Pheromone Systems (IPS) develops, produces, and supplies insect semiochemical-based products and trapping systems…

New greenhouse predatory mite coming soon

Vineland has discovered a new general predator to help control pests associated with increased crop diversity in Canadian greenhouses, thanks to a five-year project funded in…

Preventing heat stress in indoor commercial growth

When temperatures rise, you are not the only one who feels the heat. Plants suffer when temperatures rise, especially if it is for an extended time: it can cause irreversible damage by way of plant function or development. Heat stress is not simply droopy leaves, but can also show up as, for example,…

© Tomasz Klejdysz | Dreamstime.com

The pros and cons of pheromones in crop protection

Certis Europe is a company that provides Biorationals, registered plant protection products generally derived from the natural environment. Among their products are micro-organisms, natural substances, and pheromones, and all products are officially registered under the crop protection guidelines. One of…

Researchers Purdue find:

"A twist in the way plants cannibalize their own cells to survive under stress"

In response to drought, cold, lack of sunlight, and other stress, cellular proteins interact in different ways to help a plant survive. A primary protective act is the destruction and recycling of some of the plant’s own cellular materials into what is needed for others. A Purdue University-led research…

Flowering Flora Consulting Inc.

How to control loopers (Lepidoptera)

The color and size of looper larvae and adult moths depend on the species. Larvae can range from green to brown and moths are usually a mixture of white, grey, and brown coloration and patterning, and are easily distinguished from caterpillars based on their movements. When the larva moves, it brings its…


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