Factually wrong use of DDE pesticide data comparing organic vs conventional kale
In a piece about the benefits of organic food, a graph is given comparing the residues of the pesticide DDE on organic and conventionally grown kale. Unfortunately, the underlying source (http://whatsonmyfood.org/level.jsp?food=GK&pesticide=910#f1) has no data for organic kale (that is, none was tested) and thus the value for it is 0 (this is very clearly given in notes on the source linked by the author). However, the use of the graph is such that the reader would think that organic kale has no residues of DDE which is not supported by the (non-existent) data. The source of the data is the USDA's Pesticide Data Program and they simply have not tested organic kale produce for DDE.
Further, DDE is a breakdown product of DDT which has not been widely used in the United States since the 1970s so any residues on produce would be a result of pre-existing soil contamination, not use by the farmer. Not only is the data on residues misused, the implication of the story is that a consumer can avoid exposure to DDE by choosing organic, but given the problem is pre-existing contamination and that there is little to no testing of DDE residues on organic produce, DDE is just a poor choice to show differences between organic and conventional produce.
More information on this bug available in the comments.