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Homemade White Oil as insecticide

#1 User is offline   Yeong 

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Posted 02 April 2016 - 09:48 AM

If you don't like the smell of some insecticides, you can use White Oil.
White Oil is non toxic and odourless. It kills mealy bugs, red spider mites, scale insects and aphids.
You can make it at home.

Homemade White Oil:
1) Mix 1 part of dishwashing liquid detergent and 4 parts of vegetable oil (by volume) in a plastic bottle.
https://c4.staticfli..._123e5b416e.jpg

2)Shake the mixture vigorously for about 1 minute so that a stable emulsion is formed. The mixture will turn milky.
This is the concentrated white oil.
https://c4.staticfli..._8f3cbcd757.jpg

3) To use it, dilute 15ml (1 tablespoon) of the concentrated white oil in 1 litre of water. Shake the mixture well.
Pour it into a spray bottle and spray on plants. Spray on the front and back of the leaves.
https://c1.staticfli..._67023d03b6.jpg
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#2 User is offline   keff 

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Posted 02 April 2016 - 11:23 AM

excellent tips!
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#3 User is offline   digitalgate 

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Posted 02 April 2016 - 11:16 PM

if you use vegetable oil as insecticide. You will attract the attention of rats.
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#4 User is offline   Ah Pek 

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Posted 03 April 2016 - 02:00 AM

Woah, digitalgate,

Good one, i din think of that.


View Postdigitalgate, on 02 April 2016 - 11:16 PM, said:

if you use vegetable oil as insecticide. You will attract the attention of rats.

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#5 User is offline   Yeong 

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Posted 03 April 2016 - 10:00 AM

A little thin layer of vegetable oil is not likely to attract rats and you
spray once a month or more. I don't think our environment is full of rats.
Can use mineral oil to replace vegetable oil if you want.
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#6 User is offline   digitalgate 

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Posted 03 April 2016 - 07:11 PM

You try lo...
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#7 User is offline   Yeong 

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Posted 03 April 2016 - 07:58 PM

This is not new, lots of people are actually using it.
I have used this white oil for more than 5 years, both indoor and outdoor (farm).
No problem. The presence of detergent in the white oil would probably chase the rats away.
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#8 User is offline   Busy Bee 

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Posted 07 April 2016 - 12:06 PM

Thanks for the tips, Yeong. I would give it a go, been paying too much to the nurseries.

I have friends who kept telling me that I should spray fungicide/insecticide at least once a month on all orchids, including the healthy ones, as preventive measures. Is that necessary?
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#9 User is offline   Yeong 

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Posted 07 April 2016 - 02:01 PM

Your friend is right. You need to spray fungicide and insecticide at least once a month.
You may need to increase the frequency of psraying fungicide during raining season, once every 1-2 weeks.

Inspecting the plants can notice insects like mealy bugs and scale insects but not spider mites. Spider mites is very small
and like to hide behind the leaves. We only notice it when we see pits on the leaves. So,spraying insecticide can prevent this.
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#10 User is offline   Busy Bee 

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Posted 07 April 2016 - 03:06 PM

So far I never have issues with insects (touchwood). I noticed that there is always a big dominant spider, comes in black or brown, living in each orchid plant. Wonder if all other little pests are cannibalised by that big spider or perhaps the lizards have been feasting on them. Can you show me how the pits caused by spider mites look like? I may have them without knowing :unsure:/>

I do have problem with fungus and I lost a vanda recently to it (sob! sob! sob!). I will start the spraying routine soon. I presume it would be best to spray in the morning.
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#11 User is offline   Yeong 

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Posted 07 April 2016 - 03:48 PM

https://c3.staticfli..._3d16da174c.jpg

https://c5.staticfli..._3003302607.jpg

This damage on the back of the leave is caused by red spider mite (False spider mite). They suck the cell
content, leaving behind pits of dead tissue.
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#12 User is offline   Busy Bee 

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Posted 08 April 2016 - 10:02 AM

Thanks for sharing, Yeong. They look detrimental to the plants. Luckily I don't see these kind of damage so far.
I do get caterpillars and snails/slugs in my garden once in a while chewing up my precious flowers and new shoots :ranting2:/>

I would start my fungicide ritual this weekend.
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