ISMSNEWS


ISMS Congress 2016 in Amsterdam - Book early!


T


he preparations for the ISMS congress, to be held from 29th of May till 2nd of June 2016, are progressing well. Abstracts for scientific presentations are being sent in (deadline for submission was 1th of December 2015) and it is shaping up to become an interesting scientific program. A number of key-note speakers have committed themselves to the conference. Those who are interested to find out more about them can have a look at (http://www.isms2016.com/keynote_speakers. html). The organising committee is expecting a large turn-up of members of the mushroom industry from all over the world.


The fact that the Dutch Mushroom Days are organised in the same week as the ISMS congress makes it all the more interesting to come to the Netherlands in that week. For people who are interested in both events, an intertwined program has been assembled. People attending the ISMS congress also have access to the Dutch Mush- room Days. Some of the events within the ISMS congress, such as the Welcome Event will be taking place at the Dutch Mushroom


Days. As the ISMS congress will be held in Amsterdam and the Dutch Mushroom Days in the city of Den Bosch (or ‘s Hertogenbosch), bus transport will be provided to visit these events.


A small word of advice to the people who are planning to visit the ISMS congress; book you accommodation in Amsterdam as early as you can. Amsterdam is quite a busy city and in the period of end of May and the beginning of June a lot is going on simultaneously. For instance, from January to June 2016, the Netherlands will chair the European Union and this is generating a lot of activity in Amsterdam. Next to this, the


Holland Festival will be held in Amsterdam, partly simultaneously to the ISMS Congress. There is also a jazz festival and a beer festi- val running at the same time, and a lot of other smaller events. In summary; there will be a lot of people in Amsterdam so book your rooms as early as you can. Don’t hesitate!


Johan Baars, Treasurer ISMS TEELTTIPS ADVISIE


Treating foaming casing soil As far as we know, foaming of the casing soil is limited to brown mushrooms grown


By Jos Hilkens


AdVisie ‘the mushroom growing consultants’, Herkenbosch hilkens@mushroomconsulting.nl


Photo: AdVisie


using the Heirloom spawn variety, and related copies. It manifests during cool down as yellow/brown droplets of moisture on the casing soil which turn into brown patches of foam after two to three days. These patches give off a highly pungent odour. The patch rapidly expands and mushroom production will be non-existent in these areas. Massive pinning often occurs at the edges of the patch. In some cases 75% of the room was aff ected in the 1st fl ush. There are usually however one to ten patches per 100m2 of growing area, and this can be treated eff ectively. The precise cause of foaming is unknown, but certain aspects of the cultivation process do have an infl uence. There is a higher occurrence if growing is not progressing smoothly and at low outside temper- atures (< 10 degrees C). In the Netherlands this is in the late autumn / winter period when the compost quality fl uctuates widely and the casing soil is often heavier. A combination of factors that makes it diffi cult to maintain suffi cient evaporation levels. Adjusting the management strategy is the way to help prevent and reduce foaming; keep the casing open and not sealed, lighter casing soil, applying plenty of CAC, possibly light ruffl ing, careful water management, good evaporation gradient, good management of the compost temperature etc. The fi rst patches of foaming usually appear in places with too much or too little evaporation (e.g. the lower and upper bed), or where the casing soil is heavier (e.g. the edges of the bed). Treat the patches as soon as they are noticed to limit further damage. Making a number of holes in and around the edges of the patch with a screwdriver can prevent further spread. The best treatment is pouring a chlorine solution on the foam. Some scatter salt or lime on the infected patch.


MUSHROOM BUSINESS 19


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