Inland Valley Daily Bulletin

Scales, suckers and blossom end rot

5 THINGS TO DO IN THE GARDEN

- If you have a cactus or succulent plant — not mentioned above — that has fragrant flowers or enjoys a long bloom period, let me know about it by sending its story to joshua@ perfectpla­nts.com.

1 Rot patrol: Be aware of blossom end rot and the reasons for its developmen­t. This is not a disease but a physiologi­cal disorder often caused by soil moisture fluctuatio­n. It begins as a water-soaked spot that becomes brown and fleshy at the base of tomatoes, squash, peppers, cucumbers and melons. Yes, its proximate cause is a calcium deficiency in the fruit. However, if these crops had been nurtured correctly, the problem never would have developed. To prevent blossom end rot, do not fertilize excessivel­y with nitrogen; water twice a week, maintainin­g moisture at a 6-inch depth; maintain a 2-3 inch layer of mulch; and keep soil pH slightly acidic with the applicatio­n of gypsum (calcium sulfate).

2 Eyes on scales: Be on the lookout for scales, aphid-related insects as small as one-tenth of an inch in diameter. They are classified as either soft or armored and are white, gray, brown, yellow or black. They are sap suckers and so you often see them lined up on the central leaf vein, where sap is most plentiful, although they will also appear on stems and fruit, especially citrus. The simplest form of control is to dip a cloth in alcohol and wipe them off or, on more delicate indoor plants, dip a swab in alcohol for their removal. During the growing season, spray scales with Neem or horticultu­ral soap and, on perennials, spray horticultu­ral oil in winter. Ants feed off scales’ honeydew excretions, so controllin­g ants — slather petroleum jelly on the trunks of affected plants — which move scales around to their benefit, will also help in scale control.

3 Alternativ­e composting: You may wish to experiment with sheet composting, also known as cold composting or lasagna composting. It’s much easier than hot composting and can be done at your leisure wherever you wish to create or enrich a garden bed, or enrich the soil around your fruit trees. On bare soil, put down five layers of newspaper or cardboard. Soak with a hose. Cover with a 1-inch layer of a nitrogenou­s material such as manure, coffee grounds, kitchen vegetable scraps, fresh weeds or grass clippings. Add a 1-inch layer of a carbonaceo­us material such as straw, sawdust, wood chips, fallen leaves or pine needles. Continue to add alternatin­g layers of materials from nitrogen and carbon sources until a height of 1-2 feet is reached. Just make sure if kitchen scraps are used for the nitrogen layer, they are immediatel­y covered with a carbon layer in order not to attract flies.

4 Gonna git you, sucka:

Remove suckers and water sprouts from trees and roses. Suckers are the rapidly growing shoots that sprout from the base of tree trunks, rosebushes and tomato plants and take away from tree trunk, rose cane and tomato fruit developmen­t. Water sprouts are the spindly, vertical growths seen especially on certain fruit trees, such as apples and citrus; they depress fruit growth on existing branches. An aside: Suckers are easier to root than water sprouts since their closer proximity to roots means they have a higher concentrat­ion of root growth promoting hormones in their tissues.

5 Easy cuttings: Propagate cactuses by cutting off stem sections (pads) and letting them lie in the shade for a few days to a week or more until they form callus at the point of detachment. Then their bottom ends can be inserted in fast-draining soil to the minimum depth at which they can stand on their own. Stemless rosettes such as those formed on echeverias and sempervivu­ms can simply be cut and laid on the surface of fast-draining potting soil to root. Terminal shoot pieces of stemformin­g succulents such as sedums can be cut, callused and then rooted directly in well-drained garden soil or in containers.

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