Hawaii Weekly Crop Weather Report

Here is the PDF file for the *Hawaii Crop Weather* (crop progress and condition) Report for the week ending *June 10, 2007*


Please visit http://www.nass.usda.gov/hi/ for more information.

USDA NASS Hawaii Field Office
1421 South King Street
Honolulu, HI 96814-2512
1-800- 804-9514

Weather Review

Weather conditions had a variable effect on agriculture during the week ending Sunday, June 10. High pressure to the north and low pressure to the south resulted in a week of light to moderate trade winds with mostly light, passing showers. Most of the shower activity was limited to the northern islands during the first half of the week and shifted to the southern half of the State during the weekend. These passing showers occurred in windward areas and the higher elevations with some lighter amounts being blown over to the leeward side of the islands. Conditions were particularly dry on the Big Island where temperatures reached new daily highs on Monday and Wednesday. The Mayor of the County of Hawaii declared a State of Emergency on June 5 due to the continuing dry weather. A voluntary 10-percent reduction in water usage was in effect for the districts of North and South Kohala, Hamakua, and Ka`u. A mandatory 25-percent reduction in water usage was in effect for the following specific areas of the Big Island: Waimea Town to Kawaihae, Upper Pa`auilo, and Ahualoa. In addition, the State Department of Agriculture continued to place users of the Honokaa-Paauilo irrigation system under a mandatory 30-percent water conservation notice due to damage sustained from the October 15, 2006 earthquake. Users of the Waimea irrigation system were asked to voluntarily cutback irrigation water usage by 10 percent. Overall, recent weather conditions have had a variable effect on agriculture. Non-irrigated crops, those dependent on natural rainfall, were in fair to poor condition. Crops located in windward areas were faring better than those in the drier leeward areas of the island. Irrigated crops were in fair to good condition. Abundant sunshine and adequate irrigation was ensuring normal growth. Spraying for insects and disease continued on a regular schedule.

Agricultural Highlights


Orchards in eastern sections of the island of Hawaii were in fair to good condition. Mostly sunny days facilitate field operations, but soil moisture was declining. Banana Bunchy Top virus incidences remain isolated in the Puna and Kona areas. Oahu orchards were in fair to good condition. Fields in windward areas remained in fair condition. Banana Bunchy Top virus continued to affect fields. Leeward and central Oahu fields made good progress, but were also slowed by light Banana Bunchy Top virus damage. Irrigation remained at moderate to heavy levels during the week due to the dry days.


Big Island orchards were in fair to good condition. Soil moisture decreased and additional rain is needed to raise soil moisture to more satisfactory levels. Mostly sunny days dominated the week, but some light showers were beneficial. Fruit development and ripening were good on Oahu. However, mealy bugs and ring spot virus in some fields kept production lower than anticipated. Orchards on Kauai continued to make fair to good progress during the week. Spraying to contain the insect population was stepped up to contain the increased infestation.


Head Cabbage

The crop in the Big Island?s Waimea area was in generally good condition. Light insect damage on outer leaves was noticed. Irrigation ensured normal crop progress. The Volcano crop was experiencing slow progress due to dry conditions. Maui?s crop continued to make good progress. Warm temperatures stressed some lower elevation fields, but generally those fields were in good condition. Insect pressure and damage was light, but elevated in some fields. Head size was large. On Oahu, insect infestation was at light levels and mostly under control. New plants were in good condition.

Sweet Corn

Young planting in eastern sections of Hawaii County made slow progress. Newly seeded beds have gaps in the rows due to seedlings dying for lack of moisture. Light showers during the week provided some relief. Beneficial weather conditions allowed the plants to make good progress in central Oahu fields. Windward fields made good progress during the week and are expected to be harvested at moderate to heavy levels.


Pickings from most Oahu fields were at moderate to heavy levels and anticipated to continue increasing as plants were in active harvest. Melon fly infestation and light pickle worm damage has affected crop yields in some areas during the week. Irrigation levels remained heavy as the dry weather continued in most crop growing areas.

Dry Onions

Maui?s crop benefited from the dry weather and regular irrigation. Growth and development was good in most fields, although the warm temperatures have started to detrimentally affect some fields by slowing growth. Quality of harvested bulbs has reportedly been very good.

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