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Author: John

Master Greenkeeper John Quinn is the author of Performance Bowling Greens, and several other titles on Greenkeeping, Club and Business Management.

leatherjacket

Dealing with Leatherjackets: Chitin v Chlorantraniliprole

TL;DR: Greenkeepers are facing increasing challenges due to climate change, outdated practices, and pest infestations. While Chlorantraniliprole-based insecticides might offer a quick and temporary fix, they disrupt soil microbiology and pose environmental risks. The withdrawal of pesticides, however, presents an opportunity to work smarter and in harmony with nature.

Chitin, found in insect exoskeletons and fungal cell walls, plays a crucial role in soil health. When broken down into chitosan, it enhances plant growth, improves soil structure, and stimulates beneficial soil microorganisms. However, conventional greenkeeping can disrupt these natural processes, leading to a deficiency of beneficial substances like chitosan.

By reducing reliance on artificial inputs and reintroducing natural substances like chitosan, we can restore the soil's natural balance and promote healthier, more resilient turf. Chitosan enhances plant growth and productivity through soil conditioning, plant health stimulation, microbiological associations, biocontrol, and bioremediation. Thus, chitosan plays a multifaceted role in the soil ecosystem, contributing to soil health, plant growth, and disease and pest resistance.

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Watering Bowls Greens-the least you need to know

Performance turf requires heat and moisture and it is inevitable that you will have to turn to your irrigation system at this time to keep your green’s progress moving forward. Failure to keep up now could result in a disastrous season later on when the green dries out unevenly, succumbs to Localised Dry patch or simply doesn’t perform due to a lack of moisture early in the season.

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managing turf disease

Managing turf disease effectively

Managing turf disease effectively, cheaply and permanently is well within the grasp of every greenkeeper. The soil in our greens already holds all of the answers to this, or at least it should do. Some of the routine work we do on greens is more damaging than beneficial. The need to manage turf disease more effectively gives us the perfect excuse to start returning our soils and grass plants to their natural disease resistant selves, much to the benefit of our members and clubs. John explains how to manage turf disease outbreaks simply and with reference to vegetarian sausages :-)...may contain nuts!

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Bowls Green Ecology

Bowling Green Ecology

On grass areas where there is little or no human interference in the form of excessive fertiliser and pesticides, such as in meadows or parks, the thatch layer will almost always be at the optimum level for a continued healthy turf/soil eco-system. This is due to the soil/plant relationship being in balance; a strong and sufficiently lively soil microbe population releases nutrition from the thatch layer as it decomposes naturally.

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