Ntawm cov khoom tseem ceeb ntawm cov roj neem, muaj cov khoom muaj npe hu uaazadirachtin, uas cuam tshuam lub hlwb thiab cov tshuaj hormones ntawm cov kab tsuag. Cov kab tsuag uas muaj lub hlwb tsis zoo thiab cov tshuaj hormones poob lub zog rau kev noj, tsis tuaj yeem ua phooj ywg lossis nteg qe, thiab thaum kawg tuag, yog li cuam tshuam rau tag nrho cov kab hauv lub neej. Neem roj kuj tuaj yeem siv ncaj qha rau cov kab tsuag; vim qhov dej khov ntawm cov tshuaj, nws tuaj yeem ua rau lawv thiab ua rau tuag taus. Thaum siv rau cov nroj tsuag, neem roj kuj ua raws li cov tshuaj tua kab mob. Nws zoo tiv thaiv qe, larvae, nymphs, thiab kab laus.
Mechanism ntawm Action
Hormonal cuam tshuam:
Antifeedant nyhuv:
Suffocation nyhuv:
Neem roj tov yog nkig; Thaum txau rau cov kab tsuag, nws tuaj yeem ua rau lawv tuag taus.
Insect Repellent Effect:
Neem roj muaj iab saj uas cov kab tsis nyiam. Thaum txau rau ntawm cov nroj tsuag saum npoo los yog absorbed los ntawm cov qoob loo, qhov iab tsw nws tso tawm cov kab tsuag.
Insect Repellent Effect:
Neem roj muaj iab saj uas cov kab tsis nyiam. Thaum txau ntawm cov nroj tsuag saum npoo los yog absorbed los ntawm cov qoob loo, qhov tso tawm bitterness repels kab tsuag.
Hom kab tsuag
Whiteflies, aphids, kab laug sab mites, thrips, pear psyllids, mealybugs, seev cev npauj, pom lanternflies.
