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Py-Bo Fact Sheet

PyBo is so named using the “Py” from pyrethrum and the
“Bo” from PBO (the synergist: piperonyl butoxide)


This product is approved by the APVMA for many uses as stated on the label 53738/54292 — August 2012.

Active Constituents

80 g/L Pyrethrins, 480 g/L Piperonyl butoxide

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.

Three major use arenas

On all crops, flying insects outdoors, flying and crawling pests inside all buildings. Fruit and vegetable crops, cut flowers and ornamental plants Adult mosquitoes, midges, flies and other flying insects Domestic, commercial, industrial and public buildings including: food process- ing establishments, shops, factories, hotels and motels, shipping containers, offices, schools, storerooms, warehouses, hospitals, barracks, private houses and external areas asscociated with such establishments. Agricultural buildings including storage sheds, milking sheds,other high density animal production sheds, barns, kennels and stables.

Withholding period

One day for crops and for grain used for stockfeed.


As soon as the last droplet has settled


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.

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.

In a nutshell

Natural pyrethrum will kill almost every insect it contacts. It kills within minutes so you can be sure it is doing the job you expect. It degrades in UV light so the withholding period is just 1 day. Because it is rapidly metabolised it can be used on all crops and inside food handling areas.