Mandevillas, as young plants, are extremely temperamental and sensitive to handling and environmental factors. Once established, they become robust growers in warm weather, but not without some demanding cultural attention. This information is provided exclusively to Mandevilla growers of red 'Ruby Star'^{PAT #8842} and 'White Delite'^PAT#8479, by OPI, licensed propagator of these patented plants. This information would also apply to the purchase of our 'Alice Dupont' and the Yellow 'Pentalinon luteum'. If after your review you have any questions, please feel free to call us toll-free at 1-800-762-0022. Ask for Wayne Poole, our Technical Representative.

As young plants, Mandevillas are very sensitive. Immediately unbox upon receipt, place under a 30 to 50% shade and water thoroughly. Plant as soon as possible into light, well drained potting mix. Air space or the availability of oxygen to root systems of young plants is crucial in minimizing losses. Peat based mixes with 30% pine bark and 15 to 20% of inert components (saw dust, sand, airlite, perlite, etc.) are recommended. The pH of soil with organic components should not be higher than 5.8-6.0. Caution: young plants are sensitive to rough handling. When planting, do not compress or stuff liners into potting soil. Instruct planters to be kind — plant in cavities and gently cover. Rough planters and "thumb pushers" will damage exposed roots, reduce necessary air critical for root development; thus increase casualties.

Upon second watering, while soil is still moist, drench plants preventively against root rot with fungicides*: Cleary's WP or Banrot against Fusarium or Subdue against Pythium and Phytophthora. As plants mature, the urea and ammoniacal form of N is the most preferable. Incorporate 18-6-8 as the primary source of nutrients. Also, applications of fertilizers with high levels of phosphorous (Peters 9-45-15, Prolific 10-52-10 or PolyStart 8-30-5) have a very positive effect on growth of young plants. If necessary, top-dress with 16-6-10 to finish the crop.

The most critical step in order to minimize losses is to have a well organized water management program. Young plants should not be allowed to dry out during first 14 to 21 days after planting. Adequate moisture is not only critical to young plant needs, but will also reduce stress resulting from the interfacing of the liner and container media. During the first fourteen days, we recommend watering every day. If in doubt about watering or if it only "looks like rain," water.

Unless receiving nursery is already combating a white fly population or Anthracnose leaf spot, suggest waiting one week after planting before starting a preventive spray schedule. If white fly or Anthracnose is already present, immediately apply first application of pesticide(s). Remember, particularly with young plants in full sun crop areas, apply pesticides very early in mornings. Chemical effectiveness is also improved when possible to adjust water pH to 5 to 5.5.

Spray crops at least weekly for disease prevention, primarily to safeguard against the spread of Anthracnose (leaf spot fungi). Recommended fungicides to use on an alternating basis are Daconil, Cleary's, Dithane, Kocide, Junction, Spectro 90, Heritage and Zyban. Select growing areas with good drainage. To deter nematodes, grow off ground or on blocks.

Insects to scout for are: thrips, aphids, spider mites, mealy bugs and particularly white flies, which can be persistent and require regimented spray programs. Following are recommended insecticides* that should be alternately used: Thiodan, Sanmite, Talstar, Avid, Orthene (Turf, Tree & Ornamentals), Conserve EC (particularly for thrips), TriStar and M-Pede. Recommended miticides include: Floramite, Pylon and Marathon (in every form: granular, WSP or liquid), which is very effective control for aphids, white fly and thrips up to 12-16 weeks. If fighting existing population, we suggest twice weekly sprayings of Thiodan, followed by Sanmite and M-Pede. If problem persists, we recommend additional applications of Enstar.

For weed control in full-sun production, the pre-emergent herbicide OH II is safe and effective. Follow instructions carefully.

Growers of Oglesby Mandevilla

* This text is a recommendation only; it is not an endorsement of any products or acceptance of any liability as a result of usage. Please read all labels for appropriate directions and applications.

Revised 4/06/06