Opinia nr 4932 o Huragan 700 SG

Nazwa usługodawcy: Huragan 700 SG.

Wpis numer 4932 I should have known that the Australians have enecriexpe with the root concentrations with phosphonates! Most of the work with these products has been out of Australia. The work that I am most familiar with is within walnut, almond. In walnut, canker growth was reduced with chemigations and foliar sprays, as well as an additive effect of combining chemigations and foliar sprays (). Some work in almond by has shown an effect of chemigation and foliar sprays, but the biggest bang for the buck was a foliar spray.In regards to multiple in-season applications I think there may be merit. It all depends on the persistence of the product within the tree roots. My best guess is that it slowly leaks out and is converted to phosphate. In that regard some type of half life of the product within the root system probably can be described, thus providing a rough estimate of when the next application should be applied. Perhaps once every three-four months? We have seen benefits from in-season sprays when dealing with perennial cankers in a relatively short period of time. We go from actively isolating the Phytophthora before the spray to not being able to isolate two days after the application. With highly infected walnuts (crown/root rot), we have found that a two spray program (spring/fall) to be very effective from a disease management standpoint. What have you all tried down your way? I know there is widespread presence of P. cinnamomi, which is relatively limited in CA. What has been the most effective treatment for managing Phytophthora? Have repeated applications helped reduce disease incidence?
Autor wypowiedzi: 26PQV5dPbay	Data: 2015-12-14 08:19:59	Komputer: 199.223.***.***
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