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Early spring heat brings out mosquitoes

Avoid their bite; wear long sleeves and repellent

Mosquito on skin
This is an inland floodwater mosquito ( Aedes vexans ), among the
"first biter" varieties. (Photo courtesy Montana State University)



People love temperatures in the 70s – and so do mosquitoes.

Our current warm spell has brought out early-season mosquitoes in force, and they’re hungry.

“This is a typical trend that we see every year in February when we get a few days of sunny and warm weather,” said Gary Goodman, manager of the Sacramento-Yolo Mosquito and Vector Control District, in a district release Thursday. “These mosquitoes are ones that had been hibernating during the past few months. The warm temperatures have brought them out of resting and they are aggressively biting.”

According to the district, these mosquitoes are common in spring and are considered more of a seasonal nuisance than deadly threat. They’re not the species that carries West Nile Virus or other diseases. They just like to bite.

Sacramento is home to more than 50 mosquito species, according to the UC integrated pest management experts. Among the most common “first biters” is the inland floodwater mosquito ( Aedes vexans ). It doesn’t need a flood to hatch; just water and warmth. Its species name comes from the Latin word for “annoy.”

District crews have been inspecting and treating potential trouble spots where mosquitoes breed, noted the district.

This week, service requests shot up along with the heat. Those requests “increased significantly” when temperatures hit the high 60s and low 70s, says the district.

“People are enjoying the outdoors and they are noticing the mosquitoes more,” added Goodman.

As our warming trend continues, the district asked residents to keep an eye out for places where mosquitoes can breed. Drain any stagnant water that may have collected in flowerpots, saucers, buckets, bird baths, wheelbarrows or other containers. Mosquitoes can breed in as little as a few tablespoons of water.

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Garden Checklist for week of July 21

Your garden needs you!

* Keep your vegetable garden watered, mulched and weeded. Water before 8 a.m. to reduce the chance of fungal infection and to conserve moisture.

* Feed vegetable plants bone meal, rock phosphate or other fertilizers high in phosphate to stimulate more blooms and fruiting. (But wait until daily high temperatures drop out of the 100s.)

* Don’t let tomatoes wilt or dry out completely. Give tomatoes a deep watering two to three times a week.

* Harvest vegetables promptly to encourage plants to produce more. Squash especially tends to grow rapidly in hot weather. Keep an eye on zucchini.

* Pinch back chrysanthemums for bushy plants and more flowers in September.

* Remove spent flowers from roses, daylilies and other bloomers as they finish flowering.

* Pinch off blooms from basil so the plant will grow more leaves.

* Cut back lavender after flowering to promote a second bloom.

* It's not too late to add a splash of color. Plant petunias, snapdragons, zinnias and marigolds.

* From seed, plant corn, pumpkins, radishes, winter squash and sunflowers.

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