2023 Projects

Title Project Type
Data or Report Link
Abstract
Afidopyropen/Sunflower Food Use Residue IR-4 Project 13537 Safflower is used to promote water infiltration in heavy soils when rotated with cotton and tomatoes. Furthermore, the seed can be processed into an oil, rich in linoleic fatty acids. Lygus bug is a common pest in safflower, often leading to large populations that threaten both safflower as well as neighboring crops like cotton and tomatoes. Afidopyropen, a novel insecticide produced by the fungus Penicillium coprobium is effective against Western tarnished plant bug (Lygus hesperus) with relatively low environmental impact. Unfortunately, this product is not registered for use in safflower, which is included in the sunflower crop group. The residue work performed on sunflower will satisfy the need for the entire crop group, including safflower, resulting in improved Integrated Pest Management (IPM) options for grower
Clethodim/Olive Food Use Residue IR-4 Project 13451 Clethodim is an effective IPM tool when used in rotation with other materials for perennial grasses and glyphosate-resistant annual grasses. Furthermore, clethodim can be used as an alternative to glyphosate. Olive has a non-bearing label, the residue work performed for this request will expand the label to include bearing trees, aiding growers in long term orchard weed management.
Clethodim/Rice Food Use Residue IR-4 Project 13184 Red rice, aka weedy rice is very difficult to control in high value California rice stands due to it’s similar genetic nature to the rice varieties grown in California as well as it’s herbicide resistance to currently registered materials. Clethodim has been shown to be effective as a spot treatment in field trials. This request will provide label expansion to include clethodim as a spot treatment for weedy rice.
Quinclorac/Peach Performance Program IR-4 Project 12572 Quinclorac is more effective at controlling field bindweed, hedgebindweed, Canadian thistle, barnyardgrass, and crabgrass than other registered materials. These weeds are very difficult to control and the data resulting from the associated trials will provide growers better IPM strategies for controlling various weeds in stone fruit orchards.
Fluazasulfuron/Peach Performance Program IR-4 Project 13323 The peach subgroup includes peach, plum, apricot and other stone fruit. Flazasulfuron is effective in controlling annual broadleaf weeds, grasses and yellow nutsedge in pistachio, almond and walnut orchards, but is not registered in stone fruit due to the need for crop safety data. Label expansion to include stone fruit provides growers better IPM strategies to controlling weedy pests.
Cymoxanil/Strawberry Performance Program IR-4 Project 13256
Isocyloseram/Pomegranate Performance Program IR-4 Project 13504 Pomegranate is known to be a favored host by plant bugs and stink bugs, but growers currently have no rotational options for management. Isocycloseram is relatively nontoxic to beneficials. Label expansion to include pomegranates offers growers rotational chemistry for resistance management.
Grape Leafhopper Control Integrated Solutions Grape Leafhopper IS00376 Viriginia creeper leafhoppers pierce and suck the contents of leaf cells, reducing photosynthesis and leaf efficiency, often leading to leaf drop. Most registered materials are conventional, this project aims to evaluate organic alternatives for Virginia creeper leafhopper control in grapes.
Weeds in Date Palm Integrated Solutions Date Palm Weeds IS00393 California produces the largest amount of dates in the US, followed by Arizona. Registered herbicides are limited for dates and the industry needs materials to rotate modes of action to reduce risk of resistance. This study is intended to screen herbicides for crop safety as date palms are monocots and may be affected by herbicides differently than most agricultural crops.
Weeds in Wild Rice Integrated Solutions Wild Rice Weeds IS00402 Wild rice only has one herbicide labeled for use and the industry needs additional materials to rotate modes of action. This study is intended to find other herbicides that are safe to use on the wild rice plant. Three materials have been determined are being considered by the manufacturer for label expansion.
Navel Orange Worm in Almond Integrated Solutions Almond NOW IS00405 Navel Orangeworm is a major pest in almond orchards. Although there are several registered conventional pesticides, resistance is occurring. These studies are intended to screen additional materials to find rotational options and alternatives to existing Navel Orangeworm management.
Black Fly in Fig Integrated Solutions Fig Black Fly IS00406 Black Fig Fly is an exotic invasive pest in the US, first reported in 2021 and research in management is limited. These studies aim to identify potential Integrated Pest Management strategies in fig.
Thrips in Organic Tomatoes Integrated Solutions Thrips Tomatoes IS00415 The olive fruit fly maggots feed on the inside of the fruit, allowing secondary bacteria and fungi to enter and cause fruit rot that degrades the quality of olive oil.  This study assesses performance of conventional and biological insecticides to control olive fruit fly in California olive orchards.  Project is complete.
Olive fruit fly in olive Integrated Solutions Olive fruit fly IS00423 The olive fruit fly maggots feed on the inside of the fruit, allowing secondary bacteria and fungi to enter and cause fruit rot that degrades the quality of olive oil.  This study assesses performance of conventional and biological insecticides to control olive fruit fly in California olive orchards.  Project is complete.
Pomegranate Citrus flatmite Integrated Solutions Pomegranate citrus flatmite IS00437 Citrus flat mite feeding on pomegranate fruit results in brown scabbing, leathering, and cracking, an appearance like sunburn. Pomegranates produce some flowers during fruiting so the use of a material specific to mites is needed. Multiple products proved effective, and are currently being considered for residue studies.
Crinivirus and mosaic virus in melon Integrated Solutions Melon virus IS00432 Criniviruses and mosaic viruses are threatening the CA melon industry. Maximum allowable sprays of neonicotinoid insecticides are the only marginally effective controls. Priming plant defenses with chitin/chitosan-based inducers is a viable alternative. These studies will evaluate the effectiveness of chitin/chitin inducing materials.
Eriophyid Mites in Agave Environmental Horticulture Project Ongoing Eriophyid mites are increasingly becoming a major problem for ornamental agave plants grown in arid environments such as Southern California.  This project tests the efficacy and crop safety of new active ingredient formulations and new biopesticides to combat this pest.