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Py-Bo | Natural Pyrethrum | Insecticidal Concentrate

2 reviews
$102.90 - $1,400.00
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Py-Bo | Natural Pyrethrum | Insecticidal Concentrate
$102.90 - $1,400.00
Py-Bo | Natural Pyrethrum | Insecticidal Concentrate
$102.90 - $1,400.00

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Product details

Py-Bo Natural Pyrethrum Insecticidal Concentrate

Natural pyrethrum will kill every insect it contacts.
It kills within minutes so you can see immediately whether it is doing the job you expected. It degrades in UV light, so the withholding period is just 1 day.

Because it is rapidly metabolised it can be used on food crops and inside food handling areas if you follow label instructions.
The concentrate will keep for years, stored in the shed.

Application techniques
For your first application. find a section of your crop or premises where there are active pests then, using your normal equipment and technique, apply the PyBo solution. Important: check the result within 15 minutes. If you find dead pests it is because they were contacted. If there are live pests it is because they were not contacted so you need to change something physically; the droplet size (larger or smaller) or the angle of nozzles, or the volume of solution for the area. Try another section to assess the result of the changes you’ve made.

Natural pyrethrins is rapidly degraded in mammals and birds and cannot build up to levels which lead to chronic poisoning symptoms. It is possible some people will have allergies and touching nasal passages and other sensitive skin with unwashed hands can lead to discomfort.

There is no petroleum solvent in the formulation to cause leaf burn, however the only plants we know to be affected are continental or Lebanese cucumbers.

PyBo can be tank mixed with foliar fertilisers and fungicides. Wetters and stickers are not required; they just add to your expense for no benefit.

Pests controlled

A wide range of insects and spiders as specified on the label.
It kills by contact, pests should be hit by a spray, mist or fog droplet.

Pests not controlled

Pests inside grain kernels or packaging, inside plant tissue (such as fruit fly) and under protective wax (such as scale insects) cannot be contacted and will not be killed.

Withholding period
One day for crops and for grain used for stockfeed.

As soon as the last droplet has settled

About Natural Pyrethrum and arthropod pests in and around buildings.

PyBo is extremely versatile. Simplified: it kills any insect, spider or other arthropod if contacted by a droplet. If the pest is inside a crack or crevice, you can spray to wet inside the crevice. If the pest is say, a grain pest inside a bag or package, it will not be contactable and will not die (it may emerge later).

There is no residue after UV light breaks it down, however, there is less UV light indoors and almost none inside a crevice, meaning the killing (and repellency) will last longer.

The label says “DO NOT spray the moving parts of any machinery, electric motors or switchgear” which is good sense and, to “avoid contact with food, food utensils or places where food is prepared. Clean up thoroughly before processing/serving resumes” More common sense.

About Pyrethrum and cattle feedlots.

Spraying dairy cows as they leave the holding yard after the morning milking gives them relief from biting flies as they graze and then chew their cud prior to the afternoon milking… delivering substantially more milk!

The same relief is available for cattle plagued by biting flies in feedlots although it is more challenging to apply to yarded cattle than those going out through a race or gate. It can be done with misting equipment, and it will need to be done maybe twice daily. The PyBo kills the flies it hits and the droplets that land on the coat provide repellency similar to that expected in the section just above. During the period when biting flies are at their worst and the cattle weight-gain rate drops back, the use of PyBo is likely to increase weight-gain by at least 1kg/day.

About Natural Pyrethrum and Party Pests

Mozzies, midges and sandflies will kill the mood at outdoor BBQs, weddings, wakes and other outdoor events unless you kill off these biting pests before proceedings begin. Natural Pyrethrum makes the whole area repellent for a couple of hours after misting, fogging or spraying.

Pests covered on the label

The label covers 3 major situations:

  • Plant pests
  • Biting pests outdoors and
  • Flying and crawling pest in buildings.

About Natural Pyrethrum and beneficial insects and mites

Let’s start with bees. If you wait until the end of the day when all the bees are back in their hives, you can spray to kill all the pest insects on your crop without killing any bees. There is a natural repellency to pyrethrum. (It was once used in Aeroguard and other repellents to prevent mozzies and sandflies attacking humans). Even next morning, bees will not go near blossoms, but because Natural pyrethrum readily degrades in UV light, the degradation will be complete by about mid-morning and bees will safely resume their foraging and pollination!

Other beneficial insects and predatory mites will of course be killed by any application of PyBo if they are on the crop at the time. However, because of the rapid degradation, any off-crop survivors can return (once there are new pests to eat). Many growers program a PyBo spray once the crop is at a stage where pests are just beginning to make their impact and before they introduce the beneficials. And another application is often programmed just before the finished crop is removed — this reduces/eliminates any remaining pests on the crop and avoids further pest-breeding nearby.

Of course, if the beneficials are not coping with the pest population, the PyBo spray can retrieve the situation before it costs you lost yield. And, there is only a 1-day withholding period — you can gain and maintain control right up until harvest!

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Additional Details & Specifications

Active Ingredient:
480G/L Piperonyl Butoxide
Active Ingredient:
80G/L Pyrethrins
Mode Of Action:
Group 3A Insecticide
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Customer Reviews 2 Reviews Hide Reviews Show Reviews

  • Safer pest control alternative.

    Posted by Luke Cini on 22nd May 2023

    Great bulk price for the concentrated product. Useful for pest control on plants and poultry housing.

  • Not exactly as advertised

    Posted by Tom Bammann on 3rd Dec 2022

    I can't give a comprehensive review just yet, but will update it when I have used it and had time to monitor how it performs. But one thing I have noticed, is that when you click on the 250mL bottle it shows a picture of a blister pack bottle which says 250mL, so, you can expect to receive a 250mL blister pack bottle with a 20mL blister capacity for measuring of accurate-enough quantities in your sprayer. But, it came as a round black 250mL bottle. I do have the spoons to measure quantities that I need, but, for $91.80 I do feel a bit ripped off that it arrived not quite as advertised. So the most I can give this product is 4-star, and that's assuming it performs well. This can change to 5-star when the sales website is updated accordingly.

Active Ingredient:
480G/L Piperonyl Butoxide
Active Ingredient:
80G/L Pyrethrins
Mode Of Action:
Group 3A Insecticide
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