Some of my bean plants have little brown bugs covering parts of my flowers and developing bean pods. Can someone tell me what they are and some organic pesticide recipes i can use to get rid of the little bastards. thanks
Organic Pesticides?
Little bean munching bastards grrrrrrr! Let's get them!
I don't know what they are as it depends what part of the world you're in and there's loads of different brown bean munching shits, here's a short list of bean pests http://ipm.ncsu.edu/ag295/html/bean_pea_...
If you look at lots certain shop bought pesticides many of them contain pyrethrum, which is derived from chrysanthemum plants and can be used as an organic pest control!!
Soapy water is another simple pest control but needs to be applied regularly.
Another easy one to make is garlic water as garlic is easy to get hold of.
Sorry guys but I don't understand how rotenone powder (contains arsenic and sulphur) and hydrogen peroxide (a chemical bleaching agent) can even remotely be called organic.
I've copied some remedies for you to try, another effective pesticide not mentioned below can be obtained by steeping rhubarb leaves and using the resulting water as a spray.
Derris (Derris elliptica, D. Malaccensis, D. uliginosa ): This shrub originates
from lowland areas of the Malay Archipelago. Freshly cut roots from 2 to 6cm
in diameter should be washed and cut into 5cm lengths. They should be
ground with soap and a little water. Soap helps the solubility of the
insecticidal ingredient. When completely shredded squeeze the liquid out
through fine cloth. The solution should be diluted and used at once. To
obtain this solution the following quantities should be used: 1 part soap : 4
parts roots : 225 parts water.
Pyrethrum (Chrysanthemum cinerariaefolium): The white flowerheads
possess insecticidal properties. Pyrethrum is most productive at altitudes of
1600 meters and ideally in semi-arid conditions where winters are cool. On
richer soils the insecticidal properties are reduced.
Pick the flowers on a warm day when the flower are fully open. Then pile up
into small heaps in the sun to warm through. Then spread out to dry on thick
mats in a shady area. If they are to be stored, they need to be kept in an airtight
container in the darkness. Light reduces the effectiveness of the
flowers.
Pyrethrum liquid: Mix 20g pyrethrum powder with 10 litres water. Soap can
be added to make the substance more effective but it is not vital. Apply
immediately as a spray.
Yam bean (Pachyrrhizus erosus): The ripe seeds of this plant should be
collected to make an effective spray. This acts as a contact and stomach
poison.
Grind 65g of yam beans and mix well with 12 litres of water. Spray on
affected plants.
Garlic (Allium sativum): Garlic has a wide range of effects: insecticidal,
fungicidal, nematocidal and is effective against ticks.
Garlic spray: Cover 3 finely ground garlic bulbs in liquid paraffin for 2 days.
Stir in one large spoonful of soap and 10 litres of water. Use this spray
immediately so as not to loose the effects of the spray.
Produced by the Tropical Advisory Service, June 2000
Good luck with these, let me know how you get on.
Reply:I have been using Hydrogen peroxide 8% and found it to work well on EVERYTHING.. best to get a big container from a pool shop though it is much cheaper than the super market or chemist
Have a read of this article
Reply:Buy some rotenone powder and powder your beans. Don't get too much on the ground.
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