Hull split occurs in mid-July, and that’s the time when navel orangeworm starts laying eggs that will hatch within three weeks. The navel orangeworm is a particularly nasty insect that penetrates the shell and eats the meat of the nut, destroying large sections of a crop.
Navel orangeworm infestations can also lead to fungal infections. Almonds with soft shells or that mature later in the season are especially vulnerable to navel orangeworm damage.
An effective treatment program is critical to protecting crops—and yield—from navel orangeworm. One treatment, Danitol® Insecticide, provides growers with a shorter PHI than competing products—which is important if you are treating late in the season—and helps maximize yield.
Danitol and its shorter PHI provide pistachio growers, in particular, with a safety net against navel orangeworm. Because pistachio harvest comes about a month after almond harvest, there’s a chance that a later generation of navel orangeworm could infest pistachio crops just prior to harvest.
While bifenthrin-based products have a 7-day PHI, the 3-day Danitol PHI gives growers some extra protection against a navel orangeworm infestation.
Danitol can also control stink bug, which is active this time of year and can cause an exceptional amount of damage in tree nuts if left unchecked.
Another advantage of Danitol is that it does not flare mites. Indications are that this could be a particularly heavy mite season, with mites being spotted in corn fields earlier than usual this year due to generally drier conditions in the San Joaquin Valley.
Read a technical bulletin with information about Danitol in tree nuts or learn more about the full portfolio of Valent tree nut products, visit www.valent.com.