THE GROWING DIFFERENCE IN ORGANIC

THE GROWING DIFFERENCE IN ORGANIC
There is growing consensus in the scientific community that small doses of pesticides and other chemicals can adversely affect people, especially during vulnerable periods of fetal development and childhood.. This is why buying organic produce can positively impact your family’s health. Let’s take a look at a few of the differences in growing practices and pesticide residues of conventional and organic farmers.
Raspberries
The most serious disease of raspberries is gray mold, caused from rain when fruits are at their ripest. Conventional growers can use fungicides for this problem, but there are no organic fungicides available for organic growers to combat this problem. They have to be more proactive, choosing a location with good soil, and arranging crop rows to take advantage of sunlight and breezes. Other techniques are trellising, removing spent canes, thinning, controlling weeds, cover crop mowing, and a tight picking schedule to reduce the presence of overripe fruit.
Cucumbers
A recent report reviewed the current data comparing pesticide residues on organic and conventional produce. It found that conventional vegetables are 6.8 times more likely to have one or more detectable residues, and about a dozen pesticides are routinely present in fresh produce at levels that pose significant risks. The average conventional cucumber contained 2.7 different pesticides.
Honeydew melon
Honeydew melon is a long-season crop, more so than other melons. Longer time in the field makes melons more susceptible to insects and leaf disease, which can translate into more pesticides being used. Organic growers know that excess nitrate fertilizers can bring on bugs and mildew so they are careful to use compost and other slow-release sources of nitrogen. Instead of potent fungicides that conventional growers use, organic growers use botanical oils from jojoba and neem and even baking soda to combat disease. They also use biological sprays that employ competitive micro-organisms, which are harmless to us, but are lethal to the bacteria and fungal diseases that plague hot and tired melon plants.
Plums
Have you ever seen beautiful plums turn ugly with a soft brownish mold? It’s brown rot. In the spring, when plum trees bloom and set fruit, rain and cool weather encourage brown rot spores to enter the twigs where the fruit forms. Conventional growers spray synthetic fungicides; organic growers spray naturally occurring minerals and biofungicides (which have safe bacteria) to compete against the fungal spores.
Zucchini
Cucumber beetles are the scourges of zucchini growers. They feed on the leaves and spread disease from one plant to another. Some conventional growers use traps that contain a combination of cucurbitacin juices and carbaryl (a toxic insecticide) as a control method. Organic growers use floating row covers as a barrier between insects and plants, heavy mulch to deter egg laying in the soil, and they plant perimeter trap crops to attract beetles away from the zucchini. They also use natural predators like soldier beetles, wasps and bats.
Thompson seedless grapes
It’s tempting to pluck a grape and pop it in your mouth, but don’t. Grapes are heavily sprayed. An Environmental Working Group study of government data revealed that imported and domestic grapes rank in the top 10 for residues. California grape growers are reducing their use of the more toxic pesticides, but plenty are still being used. Late season grapes are often treated with sulfur dioxide gas to increase storage time; organic growers can’t use these. Your best bet is buying organic and washing your grapes to rinse off any dirt and residues. Don’t worry about the frosty color on the grapes—that’s natural, it’s called bloom.
For info on pesticide residues and organic growing, go to www.foodnews.org and www.organiccenter.org.