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["Kieran &/or Donna" <holycow@frontiernet.net>]

In case you've been too busy to actually look at the article I posted a link to, here are some of the highlights.  The article itself is a call to action to stop the approval of Round-Up Ready alfalfa.  However, you may find in reading that you already have a problem with glyophosate in your garden, even if you have never applied it.   Donna

 

 

 

1. The glyphosate molecule grabs vital nutrients and doesn’t let them go. This process is called chelation and was actually the original property for which glyphosate was patented in 1964. It was only 10 years later that it was patented as an herbicide. When applied to crops, it deprives them of vital minerals necessary for healthy plant function—especially for resisting serious soilborne diseases. The importance of minerals for protecting against disease is well established.
2. Glyphosate annihilates beneficial soil organisms, such as Pseudomonas and Bacillus bacteria that live around the roots. Since they facilitate the uptake of plant nutrients and suppress disease-causing organisms, their untimely deaths means the plant gets even weaker and the pathogens even stronger.
3. Glyphosate itself is slightly toxic to plants. It also breaks down slowly in soil to form another chemical called AMPA (aminomethylphosphonic acid) which is also toxic. But even the combined toxic effects of glyphosate and AMPA are not sufficient on their own to kill plants. It has been demonstrated numerous times since 1984
   

   that when glyphosate is applied in sterile soil, the plant may be slightly stunted, but it isn’t killed

   1. The actual plant assassins, according to Purdue weed scientists and others, are severe disease-causing organisms present in almost all soils. Glyphosate dramatically promotes these, which in turn overrun the weakened crops with deadly infections.

   2. By weakening plants and promoting disease, glyphosate opens the door for lots of problems in the field. According to Don, “There are more than 40 diseases of crop plants that are reported to increase with the use of glyphosate, and that number keeps growing as people recognize the association between glyphosate and disease.”

      1. The herbicide can interfere with photosynthesis, reduce water use efficiency, lower lignin , damage and shorten root systems, cause plants to release important sugars, and change soil pH—all of which can negatively affect crop health.  (Do you have droughty summers?)

   3. Roundup persists in the environment

      Monsanto used to boast that Roundup is biodegradable, claiming that it breaks down quickly in the soil. But courts in the US and Europe disagreed and found them guilty of false advertising. In fact, Monsanto’s own test data revealed that only 2% of the product broke down after 28 days.  In some conditions, glyphosate can grab hold of soil nutrients and remain stable for long periods. One study showed that it took up to 22 years for glyphosate to degrade only half its volume!

   4. The amount of glyphosate that can cause damage is tiny. European scientists demonstrated that less than half an ounce per acre inhibits the ability of plants to take up and transport essential micronutrients (see chart).

   5. Glyphosate residues in the soil that become bound and immobilized can be reactivated by the application of phosphate fertilizers or through other methods. Potato growers in the West and Midwest, for example, have experienced severe losses from glyphosate that has been reactivated.

   6. Manure may also be spreading the herbicide, since US livestock consume copious amounts of glyphosate—which accumulates in corn kernels and soybeans.  Imagine the shock of farmers who spread chicken manure in their fields to add nutrients, but instead found that the glyphosate in the manure tied up nutrients in the soil, promoted plant disease, and killed off weeds or crops. Test results of the manure showed glyphosate/AMPA concentrations at a whopping 0.36-0.75 parts per million (ppm). The normal herbicidal rate of glyphosate is about 0.5 ppm/acre. 

   7. Roundup Ready crops dominate US livestock feed. Soy and corn are most prevalent—93% of US soy and nearly 70% of corn are Roundup Ready. Animals are also fed derivatives of the other three Roundup Ready crops: canola, sugar beets, and cottonseed. Nutrient loss from glyphosate can therefore be severe.

      1. Roundup Ready crops dominate US livestock feed. Soy and corn are most prevalent—93% of US soy and nearly 70% of corn are Roundup Ready. Animals are also fed derivatives of the other three Roundup Ready crops: canola, sugar beets, and cottonseed. Nutrient loss from glyphosate can therefore be severe.

         This is especially true for manganese (Mn), which is not only chelated by glyphosate, but also reduced in Roundup Ready plants (see photo). One veterinarian finds low manganese in everylivestock liver he measures. Another vet sent the liver of a stillborn calf out for testing. The lab report stated: No Detectible Levels of Manganese—in spite of the fact that the mineral was in adequate concentrations in his region. When that vet started adding manganese to the feed of a herd, disease rates dropped from a staggering 20% to less than ½%.

      2. The chance that Roundup would increase soilborne diseases in alfalfa fields is a near certainty. In fact, Alfalfa may suffer more than other Roundup Ready crops. As a perennial, it can accumulate Roundup year after year. It is a deep-rooted plant, and glyphosate leaches into sub soils. And “Fusarium is a very serious pathogen of alfalfa,” says Don. “So too are Phytophthora and Pythium,” both of which are promoted by glyphosate. “Why would you even consider jeopardizing the productivity and nutrient quality of the third most valuable crop in the US?” he asks in frustration, “especially since we have no way of removing the gene once it is spread throughout the alfalfa gene pool.”