User:Staeheca/sandbox

= Quassia amara =

Insecticide
Quassia amara extract can be obtained by boiling Q.amara chips in water and removing the wood chips afterwards. The extract contains quassin and neoquassin, which have insecticidal properties. The extract can be used to spray fruitlets, shortly after cease blooming. Insecticidal effects are comparable to the insecticide diazinon. If the extract is sprayed before apple sawfly larvae hatched, Hoplocampa infestation can be reduced with an efficacy of 50%. Q.amara extract in the dosage corresponding to 3-4.5 kg of Q. amara wood chips for 1/ha is optimal. The bitter wood can be dried after boiling and be reused 2 to 3 times. The extract of Q.amara can be storaged over half a year (e.g. spring till autumn).

Q.amara is also used as a stomach or contact insecticide against various aphids and moths, potato beetle , apple blossom veevil and thephtid fruit fly. Q.amara extract posesses antiparasitic, antibacterial, amoebacidial, antiviral and anti-inflammatory properties.