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These bugs like it hot

Leaf-footed bugs thriving in triple-digit weather

Sacramento Digs Gardening
BY Debbie Arrington PUBLISHED AUG 16, 2021

Leaf-footed bug attacks a tomatillo in Midtown. (Photo: Debbie Arrington)

Leaf-footed bugs on rosebud.

Besides spider mites, one other pest apparently loves recent hot and smoky weather: Leaf-footed bugs. (They’re pretty crazy about tomatoes, too.)

Triple-digit heat has brought out an explosion of leaf-footed bugs in the greater Sacramento area. Right now, they’re scrambling around on ripe tomatoes and other fruit, sucking out juice. For example, dozens of young leaf-footed bugs were spotted in Midtown this weekend as multi generations feasted on the same tomato plants.

With distinctive leaf-shaped back legs, the leaf-footed bug is a close cousin to stink bugs – only bigger. Leaf-footed bugs often are an inch long and look like strange alien creatures. When young, they like to hang out in groups. Relatively slow to mature, they take six to eight weeks to reach adulthood. But once fully grown, they can stick around for months.

In the overall garden scheme of things, their damage is relatively minor. The leaf-footed bug stabs its long mouthparts into nice juicy fruit, flower buds, seeds and other favorite targets, then sucks out moisture. Usually, that results in only cosmetic damage; the fruit is still edible. But when their population grows like it is now, leaf-footed bugs become a bigger nuisance.

Three different species are native to California and they attack a wide range of crops and ornamental plants. The most common in Sacramento is Leptoglossus zonatus.

In home gardens, they primarily attack tomatoes, pomegranates and roses. They also have a huge appetite for almonds, pistachios, citrus and watermelon. But L. zonatus also will eat many different fruit, vegetables, nuts and flowers.

Leaf-footed bugs tend to congregate in weedy areas around vegetable or flower beds. (That’s also where they overwinter.) By removing weeds, you evict any leaf-footed bugs that may be sheltering in those plants, too.

The good news: Leaf-footed bugs can be easy to catch. No pesticides are necessary. The nymphs move slowly, stay in groups and can’t fly.

To remove them, gently shake the tomato plant or other host. Knock the nymphs off into a bucket of water with a teaspoon of liquid detergent. (The soap will keep the bugs from swimming to safety.) But wear gloves; if touched, these bugs will make your hands stink.

For more on leaf-footed bugs, check out these recommendations from the UC Cooperative Extension Pest Notes: http://ipm.ucanr.edu/PMG/PESTNOTES/pn74168.html

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gardening Sacramento leaf-footed bugs garden pests hot weather organic gardening

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Garden Checklist for week of April 21

This week there’s plenty to keep gardeners busy. With no rain in the immediate forecast, remember to irrigate any new transplants.

* Weed, weed, weed! Get them before they flower and go to seed.

* April is the last chance to plant citrus trees such as dwarf orange, lemon and kumquat. These trees also look good in landscaping and provide fresh fruit in winter.

* Smell orange blossoms? Feed citrus trees with a low dose of balanced fertilizer (such as 10-10-10) during bloom to help set fruit. Keep an eye out for ants.

* Apply slow-release fertilizer to the lawn.

* Thoroughly clean debris from the bottom of outdoor ponds or fountains.

* Spring brings a flush of rapid growth, and that means your garden is really hungry. Feed shrubs and trees with a slow-release fertilizer. Or mulch with a 1-inch layer of compost.

* Azaleas and camellias looking a little yellow? If leaves are turning yellow between the veins, give them a boost with chelated iron.

* Trim dead flowers but not leaves from spring-flowering bulbs such as daffodils and tulips. Those leaves gather energy to create next year's flowers. Also, give the bulbs a fertilizer boost after bloom.

* Pinch chrysanthemums back to 12 inches for fall flowers. Cut old stems to the ground.

* Mulch around plants to conserve moisture and control weeds.

* From seed, plant beans, beets, cantaloupes, carrots, corn, cucumbers, melons, radishes and squash.

* Plant onion sets.

* In the flower garden, plant seeds for asters, cosmos, celosia, marigolds, salvia, sunflowers and zinnias.

* Transplant petunias, zinnias, geraniums and other summer bloomers.

* Plant perennials and dahlia tubers for summer bloom.

* Mid to late April is about the last chance to plant summer bulbs, such as gladiolus and tuberous begonias.

* Transplant lettuce seedlings. Choose varieties that mature quickly such as loose leaf.

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