Integrated Pest Management

A Dozen Roses - Pro-Active Growing Approach

A Dozen Roses believes in growing the finest quality roses using the latest environmentally friendly cultivation and processing techniques.  A Dozen Roses has adopted a policy of ensuring all its cultivations and associated operations are carried out with due diligence together with an emphasis on responsibility towards the environment and the community.

Integrated Pest Management (I.P.M.) - whereby a program & strategy is implemented to reduce the use of harsh chemicals and rather use bio-controls, predicatory mites and soft chemicals like "Eco-oils" / "Eco-Carb" which are environmentally-friendly and reduce the chance of resistance build-up.  A Dozen Roses is really determined not to spray chemicals undiscrimenately.  A Dozen Roses is particularly strict with its sanitation practices to reduce the introduction of diseases & pathogens.  Daily scouting and monitoring of the crop also identifies any problem pests and diseases early.  Yellow sticky traps are also used throughout the greenhouse to monitor aphids, fungus gnats, thrips, whitefly, shore fly and Western Flower Thrips (WFT).  Crop monitoring is done by Wade Mann and his staff who have attended the IPM training course together with the assistance of Horticultural Crop Monitoring (H. C. M.)- Malcolm Durham, SmartHorti, ABC Australasian Biological Control/Goodbugs and the "Rose and Gerbera Flower Grower IPM Group".

Yellow Sticky Traps hanging above the crop to trap any insects for monitoring for the IPM programme.

All buckets are sterilized daily for good sanitation practices.

* Tyrade has undergone two audits for the accreditation program and has passed both with more than 94% - this is an extremely vigorous audit of all areas of cultivation and includes the following Integrated Pest Management areas:-

* Undergoing the proper IPM training

* Propagation and transplanting

* Crop production

* Site set-up

* Crop sanitation

* Crop monitoring

* Using pesticides

* Using biocontrol agents

* Decision-making

* General IPM considerations

* The botton line - pest & disease control achieved

* Record keeping

All these areas are rigoursly checked to ensure that all details are adhered to.

*  Tyrade has a "closed" irrigation system - whereby all run-off is collected in underground tanks and returned to the system following filtration and ozone disinfestation to remove any water borne pathogens.  The re-used water is blended with rain water and nutrient levels adjusted before application to the crop.  This level of control is well above the industry norm.

* Organic, decomposable growing medium used - Tyrade uses coco-peat as a growing medium for their hydroponic cultivation of roses, this coco-peat is imported from Sri Lanka and supplied by Galuku.  Tyrade uses this as a preferred growing medium as it has good drainage properties but at the same time has excellent moisture retention (water-holding capacity is between 33-60%) and it has a stable pH of 5.8 - 6.5 and it is always noted for its excellent air volume (20-21%).  It is also renowned for stimulating root growth and fine root hair development..  At the end of its 5 year life span - the coco-peat is bio-de-gradable and will not be an environmental hazard.

* Computer controlled growing environment - the greenhouse in which Tyrade grows it's hydroponic roses is totally computer controlled so that the optimum growing conditions are provided to maximize the productivity of the rose plants and to minimize any stress to the rose plants caused by fluctuations in growing conditions.  There are controls on the venting system - so when there is a prevailing wind the vents will adjust to allow air-flow into the greenhouse but minimize strong gusts/drafts. The vents will close fully if there is heavy and consistent rainfall - so that the roses do not get wet.  On a very hot day the vents will open fully to maximize the airflow and encourage the hot air to escape from the greenhouse.  There is also computer control on the shade-screens which is determined by a "lux-meter" - parameters are set for optimum light to reach the roses but anything above the necessary light intensity causes the shade-screens to close - so too on a dull/cloudy day the shade-screens are retracted to allow maximum light to reach the roses.  The fertigation and irrigation of the crop is also computer controlled - the parameters are again set for optimum usage of fertilizers and water - irrigation only commences 1 hour after sunrise and always finishes 1 hour before sunset.  The crop can be irrigated up to 24 times in a day.  The greenhouse is also fitted with fans to create better and more effective air circulation throughout the rose crop - this a very efficient way of cooling the crop as it keeps the hot air rising out the vents and at the same time reduces condensation on the crop which could cause disease.  The greenhouse is also fitted with "Priva" gas heater fans which provide heating in the winter to maintain plant health and productivity.

One of the five fans cooling & circulating air in the greenhouse.

* The fertigation program is highly advanced and state of the art.  Tyrade uses an Elder Shany to control its fertigation program this controller uses light and time to regulate the irrigation cycles - the nutrient solution is delivered to each individual plant via a combination of valves, micro-irrigation lines and drippers.  Water is analysed on a regular basis and the formulation of the nutrient solution adjusted accordingly.  Wade Mann checks the pH & EC's of the solutions entering the crop & again returning from the crop (run-off) on a daily basis - this is imperative to monitor the crop's needs & to maintain optimum growing pH's & EC's.  Tyrade uses a company called Rootzone in Western Australia to monitor and analyse the solutions - and to give additional recommendations.

Wade Mann working on the fertigation mixtures.

Showing how all run off is collected in the gutters under the boxes.


* Tyrade obviously has implemented a strict waste management program whereby all waste materials from the hydroponic rose growing operation is minimized but dealt with in an appropriate manner.  All waste plant material is first put through a mulching machine and then put into piles to decompose fully and then used to spread over the top soil to mulch the ground.  Water is also conserved by our re-cycling program & our "closed"  irrigation system - the use of drippers as opposed to G-Jet irrigation means water is taken directly to the root system and there is no chance of water loss due to evaporation.  All run off water is collected in underground tanks so there is no chance of contaminating the waterways.  All empty chemical containers/hazardous materials are appropriately disposed of according to the industry norm.

Drippers taking the water & nutrients directly to the rose plants roots.

Tanks collecting rain-water run off from the roof.

*  A Dozen Roses also uses the "bending" growing technique on its rose bushes, whereby all thin & unsellable stems are bent to create a canopy of leaf-cover.  This leaf-cover acts as the factory for producing food for the rose plants through photosynthesis - so whenever a stem is reaped the plant still has its canopy producing food and is not severely affected by the removal of the stem and all it's leaves.  The bent stems also provide two to three nodes that will produce buds and grow to become healthy, strong sellable stems.

Bending Technique.

Merle Mann doing the bending & dis-budding.

*  A Dozen Roses uses shade-screens to control lighting to the rose crop - in the heat of summer the shade-screens are extended to protect the crop from too much light which will cause the buds to lighten in colour for the lighter coloured varieties but prevents blackening in the red and dark-coloured roses.  The shade-screens also assist in reflecting some of the heat.  In winter time - the shade-screens are fully retracted to expose the rose crop to maximum light to encourage growth and warmth through out the crop.



* A Dozen Roses is determined to assist in educating the customer on the post-harvest treatment and care of roses.  A Dozen Roses aims to improve the awareness of the public of what to expect from fresh-cut roses and how to maximize the vase life and enjoyment of the blooms, thus, giving people an added confidence in purchasing roses again in the future. Tyrade's roses are guaranteed to last 7 days which is not readily done by any competitors - therefore, we mean it when we say "Quality and Freshness Guaranteed!"







Outgrow Outclass Outlast Outstanding