Showing posts with label Agriculture. Show all posts
Showing posts with label Agriculture. Show all posts

Thursday 15 May 2014

Pesticides, Herbicides, Fungicides and GM crops all in the French news.

How the time flies when you’re busy and when the bees are swarming it doesn’t leave time for much else, especially if you are like me and are always leaving everything to the last minute. In this case it’s preparing enough hives and frames for the swarms to be housed in which I’ve just about kept up with, (about 25 so far). Then nature decided to lend a hand by dishing out the rather vile weather we have been experiencing for the last week which has prevented any more colonies from swarming giving me some catch up time. Unfortunately this won’t have helped the bees at all. Any colonies prepared and waiting to swarm may have had to tear down and destroy any Queen cells that were about to hatch and colonies that had already swarmed may have had problems mating their new Queens with all the cold wind and heavy rainstorms which seem to be an increasing spring feature of the weather in this part of France. The requirement to be around my hives for swarming does rather hamper my other activities at this time of year which is a shame, but back out and about soon with some interesting field trips penciled in.

Click on images to enlarge.




On the agricultural front there has been some good news recently in France with the total banning of aerial spraying without any exceptions. This has been an EU law since 2009 but individual member countries can derogate from this when and if they consider it’s required. In France this has been principally in the overseas territories of Martinique, the Antilles and Guadeloupe with certain of the vineyards of Mâcon, (Burgandy), in mainland France. No future authorisations will be granted. Additionally all use of land based sprays will soon only be permitted in the evening and night, not in the daytime although how this will work out and be enforced in practice remains to be seen.



Cultivation of Genetically modified crops has been totally forbidden by the French government which will please many people myself included although I’m sure the corporations will fight back again and again to try and get this overturned.

Back to the vineyards where it seems the river Charente between Angouleme and Saints is the most polluted stretch of river in France with the finger pointed firmly at the Cognac grape growing regions.  A study in 2011 by the highly respected CHU Poitiers showed a higher mortality rate for the population living in the Charente vineyards. Scientists found an over representation of Parkinson's disease (29%) and blood cancers lymphoma types (19%).  Atrazine, desethyl atrazine and the “worlds’ favourite herbicide” glyphosate have all been recorded in substantial levels. Dependence on chemicals at every stage of most French wine production is reducing it to no more than another industrial process, sad days indeed. Even now as I write this there is a report in the paper Sud Ouest of an incident on May 5th at a school in Villeneuve near Bourg-sur-Gironde surrounded by vineyards where 23 students from two classes of primary school and their teacher began to feel the same symptoms of pain in the throat, tingling of the tongue, eye irritation, nausea and headache in the late morning. Earlier, the director had tried to contact the mayor, Catherine Verges, who is also one of the two owners of the vineyards adjacent to the school, to stop the spraying that was underway but to no avail. These incidents are not uncommon and I have heard the tales of people feeling unwell in the vineyards since we came to live in France. The craziest thing of all is that Emmanuel Giboulot a biodynamic winemaker since the 1970s was summoned to the Criminal Court of Dijon this year for refusing to use a chemical product to control flavescence dorée, a bacterial disease of vines. On April 7th he was fined €1000 following which Emmanuel Giboulot said “I do not feel guilty at all. I do not agree with the court's analysis and I still consider that it was not justified to treat the vines against flavescence dorée in the department of Côte-d'Or in 2013 when no outbreak had been detected.” He went on to say “that a product called Pyrevert that is based on natural pyrethrum, an extract of dried chrysanthemum flowers is permitted in organic agriculture but this insecticide is not selective and although it destroys the leafhopper which is the insect vector for the disease flavescence dorée it also destroys a large part of the auxiliary fauna on which I rely for regulating the ecosystem of my vineyard.”  Which is to my mind a totally logical attitude; if and only if there is a requirement to control something it should be targeted and proportionate.


Too much to mention everything in the garden but it hasn’t been good again for butterflies and I've only just seen a few Hornet Queens and Common wasp Queens in the last week and none of the smaller wasps. It does seem that the number of insects is decreasing year after year although I have no hard evidence for that but with the relentless expansion of the “green cereal desert” and given the massive levels of “cides” that are being sprayed here all the time, both agricultural and domestic, it wouldn’t be a surprise. However it isn’t all one way traffic, woodland species seem plentiful with lot’s of Violet oil beetles early in the year, lot’s of baby Bush crickets in our fields and the one butterfly that’s abundant this spring is the Southern speckled wood. All the common birds have nested well on our land and many have fledged their young such as Long tailed tits, Goldfinches, Blackbirds and Black caps. Nightingales are once again everywhere making their presence known with their almost non stop singing with Golden Oriole arriving here in the last week.







Enough for now, it's getting late,
Chris






Thursday 3 April 2014

Honey bees and Oil seed rape

With the spring well and truly advanced and the Oil seed rape, (Colza), flowering in the fields locally I finally managed to get the last of the “honey supers” on yesterday and breathed a sigh of relief - just in time, always at the last minute.


Once the temperature exceeds about 15 – 16°C Oil seed rape produces sufficient nectar to create what bee keepers call “a flow” and at this point Honey bees will go totally crazy for it and will travel past all the other sources of nectar such as plum, cherry, apple and blackthorn to reach it, sometimes by several kilometres.

The introduction of spring flowering rape has been one of the major changes both in the French countryside and for honey bees in the last 20 / 25 years with production in 1985 of 1.4 million tons, 1995 of 2.8 million tons, 2005 of 4.5 million tons and 5.5 million tons in 2012.  The change is so great in the areas where it is grown that it has completely altered the behaviour of bees in spring and weather conditions permitting can provide a yield of 10 to 20 kg of rape honey per hive by the end of April and may also result in colonies swarming earlier in the season which is either desirable or not depending on the keepers point of view. Personally as someone that let’s their bees swarm, (and hopefully captures most of them), I think it’s beneficial and allows for a longer period of colony build up with correspondingly greater summer yields and colony strength.

One downside is that the crop itself can have moderate to severe health implications for some people ranging from breathing difficulties, coughing and sneezing to severe headaches.  Anyone that has been near the crop when it’s flowering will have been aware of the powerful perfume that fills the air.




The downside for the bee keeper is that due to the small size of the sugars in rape honey it sets rapidly becoming hard even in the hive and must be removed and extracted rapidly ideally before the rape has finished flowering, which brings us to something else. While the rape is flowering and temperatures are high enough the bees will work furiously and be generally very happy and pleasant natured, or perhaps just too busy to waste time with any human interference. When the rape stops flowering and the flow finishes there is often something of a forage gap with little to fill it other than perhaps Acacia in a good year, consequently the bees can become quite bad tempered for a while.

Back to the rape honey, as mentioned it sets rapidly and is also very hard, however by stirring and remixing it will soften and is then sold as “creamed honey” or “miel crémeux” in French. If left hard in the tub or jar it is easy to soften with a knife when used. 

It’s also very pale, often almost white as can be seen in the photo; to state the obvious it’s the pot on the left.


Chris