I have a few varieties of Edamame soybean seed. The easiest to grow is the Bunya variety. Even then is it for the more experienced growers because it is very attractive to sucking bugs. Its adapted to N NSW and Qld & best planting dates are from now till about the end of January. If you'd like some just PM me.
Just pick them when they are at the fullest but before they start to yellow, boil for 5 to 10 mins. Salt to taste and consume by squeezing a seed out the end of the pod. They are a healthy, tasty and nutritious snack.
As I mentioned before, they are very attactive to sucking bugs, so some method of control will be necessary. Sorry, a little more effort than 'fling in the seed and stand back' is required.
Andrew I'm going to refer you to Donna's seed saving thing because she may be help you out with this.
I'm guessing the edamame (because i've eaten them as you suggest and they are delicious) don't have the tough skin around the seed that 'normal' soybeans do - probably why they are targeted by sucking insects.
Sounds tough to deal with - maybe neem? Not sure about neem. I suspect is probably highly toxic to humans. Or dusting with flour/ chilli/ pepper type glue gump if you can keep up with the rain.
Something of interest?
Nerve damage caused by long term exposure to pyrethrins is not mentioned in this paper however it's common enough on Google.
Some time ago I read a research paper on the use of neem as a pesticide. I've reprinted the abstract below,
The neem tree, Azadirachta indica, provides many useful compounds that are used as pesticides and could be applied to protect storedseeds against insects. However in addition to possible beneﬁcial health effects, such as blood sugar lowering properties, anti-parasitic,anti-inﬂammatory, anti-ulcer and hepatoprotective effects, also toxic effects are described. In this study we present a review of the toxicologicaldata from human and animal studies with oral administration of different neem-based preparations. The non-aqueous extracts appear to bethe most toxic neem-based products, with an estimated safe dose (ESD) of 0.002 and 12.5 g/kg bw/day. Less toxic are the unprocessedmaterials seed oil and the aqueous extracts (ESD 0.26 and 0.3 mg/kg bw/day, 2 l/kg bw/day respectively). Most of the pure compounds showa relatively low toxicity (ESD azadirachtin 15 mg/kg bw/day). For all preparations, reversible effect on reproduction of both male and femalemammals seem to be the most important toxic effects upon sub-acute or chronic exposure. From the available data, safety assessments forthe various neem-derived preparations were made and the outcomes are compared to the ingestion of residues on food treated with neempreparations as insecticides. This leads to the conclusion that, if applied with care, use of neem derived pesticides as an insecticide should notbe discouraged.© 2004 Elsevier Ireland Lt
The full paper may be found here
In my opinion, backyard market gardens (especially in the warmer climates) still require some intervention, be it physical or chemical (including organics), as a supplement to a rich growing environment and ecological balance.
For example, two weeks ago I found a few aphids on the melons. I thought I'll leave them alone and let the nature take care of them. Aphid numbers have since exploded despite the presence of numerous ladybugs. No doubt ladybug larva will soon appear and make short work of the aphids. However, aphids are known to transmit some nasty diseases into melons. By the time natural equilibrium is achieved, it may be too late. That's probably ok in nature because there'll be plenty of predators to protect the next batch of melons. As time (or lackof) is a factor, there becomes a need to spray with the least toxic yet most effective solution as a stop gap.
Oh dear, what waffle and off the track too. I'm sorry. :)
I understand the science indicates that the pyrethrins break down quite quickly when exposed to sunlight. Hence they have a very short with-holding period before consumption.
I'm getting a bit distrusting of google as there is so much miss-infromation and downright BS on the internet.
I try to source info from research papers produced by universities. Even so, these days there is much vested interest shared between industry and academia. That's why I have my salt shaker with me all the time LOL. :>
Back to the subject of soybean, in your experience Andrew, what sort of sucking insects have you encountered?
I was thinking of mitigating the risk of a 'bad' harvest by growing them under a mosquito net. That wouldn't work if the culprits are thrips, for instance.
The main bug pests are;
Green vegetable bug (Nezara virudula)
Red banded shield bug (Piezodorus grossi)
Brown bean bug (Riptortis serripes and Melanocanthus scutellaris).
A netting tent would certainly work to exclude them!