General Information


Portal is a contact miticide used for the control of leafhoppers, mealybugs, mites, or psylla. This product should be used in a rotational program with other products to provide resistance management. Apply as a spray as directed in the “Application Directions” section of the label. Portal is a 5% Emulsifiable Concentrate which contains 0.40 lb fenpyroximate per gallon.

Portal works primarily through contact action, so good spray coverage is necessary. Mix with sufficient water and apply as a foliar spray to obtain uniform coverage. Dense foliage or excessive growth will often prevent adequate coverage; adjust spray volumes accordingly. Treat plants when pests are immature or at a susceptible stage and populations are building, before crop damage occurs.

Portal stops mite damage immediately after application. Portal provides this stop-feeding action together with a cessation of egg laying, and mites die in 3 to 7 days.


Applications should be made immediately after the spray solution is prepared. Thorough spray coverage is essential for mite control. Applications may be made with high or low volume spray equipment that provides thorough coverage of the plant. Apply with properly calibrated spray equipment.


- Do not apply by air or chemigation.

- Do not apply within 75 feet of all aquatic areas by ground boom and airblast applications.

- Do not plant rotational crops other than those listed on the label for 30 days following the last application of this product.


Shake well before using. Read and follow all label directions for each tankmix product prior to any tank mixing with Portal. Begin with clean equipment. Prepare only the amount of spray solution needed to treat the target area. Add sufficient clean water to the spray tank for one-half of the mix load. Where possible, start agitation and properly suspend the necessary amount of Portal in the tank. Agitate to ensure thorough mixing while adding the remaining required water volume and other products. Portal should be properly suspended and diluted prior to application. Follow normal agricultural spray practices for the crop being treated. Maintain agitation during mixing and application. If agitation is stopped for any reason, the spray solution must be thoroughly remixed prior to further use.

Read and follow all label directions for each tankmix product. Always use in accordance with the most restrictive of label precautions and limitations.


Repeated use of the same chemistry has been shown to result in the buildup of resistant strains of mites or other insects. DO NOT use Portal in successive miticide applications.

Rotate the use of Portal with alternate mode of action insecticides:

- miticides must be rotated with alternate products for resistance management

- avoid using products with same mode of action; for example, Portal and Pyramite /Nexter (pyridaben) are both METI-2 inhibitors and should not be rotated with each other

Consult your local crop advisor for the most appropriate alternative products. Resistance management strategies recommend that you DO NOT apply rates lower than recommended on the label. For best results, do not make more than one application of Portal in a single growing season.

Limitations, Restrictions, and Exceptions


Nonbearing Deciduous Fruit and Nut Trees and Vines

Apply Portal using ground or airblast (air assist) spray equipment in 100 to 200 gallons of water per acre to ensure uniform, adequate coverage. Use the higher spray volume to provide adequate coverage in larger trees with dense foliage. For best results, apply when pest populations are beginning to build, before reaching economic thresholds. Consult your local agricultural advisor, state cooperative extension service, or regional Nichino America representative for further information.

- Do not harvest edible crops for 12 months following application.

- Do not apply through any type of irrigation system.

For control of pear psylla, use 2 pints per acre, applied in a maximum of 200 gallons of water per acre. Do not apply less than 2 pints Portal per acre and use adequate spray volume of water per acre to achieve full coverage.

Pre-Harvest Interval

14 days

Restricted Entry Interval

12 hours