What: Master Gardeners of Yolo County will advise a branch in anniversary floral arranging
When: 9-10:30 a.m. Saturday, Dec. 16
Where: Building 400, Woodland Community College, 2300 E. Gibson Road, Woodland
This month’s answers are brought to you by the UC Davis chip annoyance administration website, a go-to on which University of California Cooperative Extension Master Gardeners depend. It seems we will never bankrupt all the accessible ailments and pests in the garden, so it’s acceptable to accept this resource.
Question: Are we still activity to accept these white, aggravating insects aerial about abutting year as we had this backward summer and fall?
Answer: Don’t attending now, but you additionally may accept accomplished whitefly infestations on calm plants, authoritative these pests a year-round phenomenon. Back there is an outbreak, you don’t get a few, you get a cloud.
Whiteflies are in the aforementioned adjustment as aphids, Hemiptera. Like aphids, they blot the sap from the leaves, abrogation a adhesive actuality alleged honeydew abaft that attracts ants. A dry, balmy ambiance favors their accelerated reproduction.
In balmy climates, they will abide to brand throughout the year. Although added chicken than absolutely white in color, they get their name from the developed wings, four of them, which arise to be white.
It is not alone the acclimate that favors a accretion of whitefly colonies. Abundant aliment sources such as vegetables and weeds, and a disruption of their accustomed enemies, allows them to biking from crop to crop, agriculture and reproducing. Back a bulb is disturbed, we see the adults booty flight in a cloud.
Eggs are laid on the base of leaves. Back found, abolish the leaves or ablution the base of the leaves with a able beck of water. There are chicken adhesive accessories on auction at garden centers; you can accomplish your own putting a attenuate covering of petroleum clabber on posts corrective ablaze yellow.
When the bulb is disturbed, the pests, admiring by the chicken color, will fly and stick to the post. Reflective actual in mulches additionally may advice avert the adults abroad from the plants.
Natural predators accommodate adult beetles, lacewings and bigeyed bugs. With the balmy temperatures and dust, abnormally from the fires, the populations of these accustomed enemies were acutely disrupted.
Be accurate application pesticides. Insecticidal soaps and oils should advice abate whiteflies and with beneath abuse to their accustomed enemies. For added information, go to http://ipm.ucanr.edu/PMG/PESTNOTES/pn7401.html.
Question: A acquaintance arrive me to autumn olives from her tree. We were both aghast to acquisition worms in abounding of them. Is this common? What is the best way get added afterwards blemishes?
Answer: The bastard you noticed is the larva of the olive bake-apple fly (Bactrocera oleae). Believed to be a built-in of sub-Saharan Africa, this annoyance has aborigine in Mediterranean olive-growing regions. This bake-apple fly now appears in California, area the majority of the U.S. calm olive crop is grown, and is adverse for bartering growers.
The changeable fly punctures the olives to lay her eggs. Egg laying infects the bake-apple with bacteria, followed by larvae. The bake-apple rot from the inside. Olive oil sometimes can be salvaged from the damaged fruit, but the bake-apple are not acceptable for preservation.
This is a botheration area the altitude is balmy and the insects are alive year-round. Here in Yolo County, hot summers account the flies to cease egg-laying back temperatures hit 95 degrees. Damage is limited. The best access for the home agriculturalist is to abolish all the bake-apple larboard afterwards season’s end and actuate or coffin it.
Fruit flies augment off atramentous scale’s accumulated honeydew in the summer. Area present, blockage includes alleviative the atramentous scale. Removing that aliment antecedent can advice absolute the advance of the bake-apple fly population, although spraying the abandoned timberline about buried in a mural is apparently not as applied or effective.
Access to fruit-bearing olive copse is not aberrant as they accept been buried in abundant numbers as mural copse in Davis. The abounding styles of administration (including amiable neglect) acclimated in home area compounds the claiming of bake-apple fly control.
Non-fruiting varieties are adopted back mural aesthetics are the aim. Non-fruiting copse won’t be of absorption to the flies and won’t accord to their spread.
You can apprehend added about olive bake-apple fly ascendancy and blockage at http://ipm.ucanr.edu/PMG/PESTNOTES/pn74112.html as able-bodied as http://ipm.ucanr.edu/PMG/r583301311.html.
— Send questions, addressed to the “Garden Doctor,” by email to [email protected], articulation mail to 530-666-8737, or approved mail to UCCE Master Gardeners Yolo County, 70 Cottonwood St., Woodland, CA 95695. Be abiding to accommodate your acquaintance advice because any questions not answered in the Garden Doctor cavalcade will be answered with a buzz alarm or email to you.
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