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


Pome Fruit (apple, pear, crabapple, loquat, mayhaw, medlar, quince)

Apply Portal in 100 to 200 gallons of water per acre using ground sprayer or airblast (air assist) spray equipment. Applications may also be made using concentrate spray equipment (see note below). Use the higher spray volume to provide adequate coverage in larger trees with dense foliage. Applications may be made from petal fall up to 14 days before harvest to control motile and mature stages of mites, leafhoppers, or psylla. 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 apply through any type of irrigation system.

Full coverage dilute spray rate is based on 2 pints per 200 gallons water per acre. For smaller canopy orchards requiring less water for full coverage spray, the rate of product applied per acre may be reduced according to the total spray volume applied per acre. Maintain a final spray concentration of no less than 2 pints per 200 gallons of water. For concentrate spray applications, use this same guide for determining the rate of product per acre. Example: For orchards requiring 100 gallons water for full coverage dilute spray, 1 pint per acre may be used for either dilute or concentrate spray applications.

Pre-Harvest Interval

14 days

Restricted Entry Interval

12 hours