Objectives
1) Test two options for reducing damage from Mexican bean beetle in the first year of release: a) Raise the release rate of wasps, and b) Apply one spray of a botanical insecticide to reduce the initial density of adult beetles, then release the wasps at the usual rate after the spray residue is gone and when remaining beetles are in the appropriate larval stage.
The first objective of this study (Phase I) was to establish four bat houses (two pairs each of a proven nursery design) at 10 organic farms in California and Utah. Larger, experimental designs were to be installed at five of these sites for testing purposes. Data from the North American Bat House Research Project shows that pairs or groups of houses are more successful than single houses.
Strawberry growers on the Central Coast of California have long observed that the principal cosmetic pest of their crop, the western tarnished plant bug (WTPB) or lygus bug, Lygus hesperus (Knight) establishes populations in strawberry fields in mid-season in relation to the proximity and flowering status of weedy, broadleaved hosts in adjacent areas. WTPB is known to be hosted in winter and early spring by numerous wild hosts which serve as a bridge to the infestation of strawberry fields when strawberry host flowers and small green fruit become abundant.
PROJECT OBJECTIVES
1. Develop an integrated, sustainable arthropod management system that will allow the production and marketing of certified organic apples.
2. Develop alternative chemical fruit thinning approaches for use in certified organic apple orchards that will result in annual cropping and large fruit size.
3. Develop alternative weed control approaches for use in certified organic apple orchards that will result in similar tree growth, yield, fruit size and leaf nutrient levels as conventional herbicides.
In the first year of this study (2000), project objectives were:
Objectives The original objectives of the project were as follows: 1. To determine if beetles remain active into summer if crucifers are present under field conditions. 2. To determine if initial infestation of M. ochroloma arise from within the field from the soil subsurface or whether beetle enter the field from field edges after oversummering. 3. To determine whether intercropping crucifers protects them from YMLB by hiding them among non-host plants. 4. To determine if cutting crucifers makes them easier for the beetles to find, therefore increasing infestation.
As outlined in our initial proposal our project objectives were as follows: 1) Evaluate in-field refuges for predator conservation and the control of root maggots (Delia spp.) and aphids. 2) Evaluate efficacy of floral plantings for conservation of root maggot and aphid parasitoids. 3) Transmit our findings to growers.
Farmer surveys conducted during the first year of a multi-year research program investigating the diversity and utilization of North-central Florida farmlands by birds demonstrated a great interest by organic producers in the potential impact birds have on insect populations in their cropping systems (Jacobson at al. 2003). They expressed interest in management recommendations designed to enhance the presence and foraging activities of insectivorous birds on their farms. Therefore based upon this interest we developed the following objectives for this study:
Objectives
The primary objective of this proposal was to determine the ability to produce organically grown alfalfa in areas with significant potato leaf hopper pressure and then to share this capability with organic growers. Specific experimental objectives were:
1. Determine if glandular-haired, PLH resistant alfalfa can be produced organically,
2. Determine if organically grown glandular-haired, PLH resistant alfalfa can reduce PLH density,
Objectives
The objectives of this study were:
To evaluate the efficacy of high tunnel structures covered with insect excluding materials to reduce insect vectored diseases in an organic production system.
To evaluate the effect of different covering materials on the tunnel growing environment (temperature, relative humidity, and radiation).
To compare costs and benefits of different tunnel covering materials as they apply to plant protection under organic production.