Preventing berry production on tree.? and Lobelia valida #2

Preventing berry production on tree.?

In the front yard of my house is a variation of a Japanese Privet, Ligustrum Lucidum to be precise, that produces large clusters of tiny purple berries in the fall. These berries are juicy and stick to everything and stain everything and drop by the hundreds every few hours. A real nuisance. I've heard there is an injection that can be administered pre-production of these berries that prevents their growth altogether. However, neither the association I live in, nor the city is being forthcoming with information or assistance. Are there any DIY remedies to this or third party services?


inflorescence best answer:

Answer by topaz
I was able to find this http://joa.isa-arbor.com/request.asp?JournalID=1&ArticleID=1798&Type=2 which is a study to prevent flowering an fruiting of glossy privet in California, three of which were effective, but two of these are no longer available because of their toxicity.

This may be something for which you would need to consult a professional arborist. Other options, since these are on your property, might be to remove the plants entirely (these are considered an invasive species http://www.invasiveplantatlas.org/subject.html?sub=5942 ), or at least remove what immature inflorescences you can before they open and are pollinated.

inflorescence

Lobelia valida #2


Best viewed @ large size

Campanulaceae (or Lobeliaceae) - Cape region of South Africa
Cape Lobelia, Galjoenblom (Afrikaans)
Shown: Detail of inflorescence displaying buds and fully opened flowers; individual flowers strikingly similar in size and shape to familiar garden species Lobelia erinus

"Lobelia (pronounced /lɵˈbiːliə/)[1] is a genus of flowering plant comprising 360–400 species, with a subcosmopolitan distribution primarily in tropical to warm temperate regions of the world, a few species extending into cooler temperate regions.[2] English names include Lobelia, Asthma Weed, Indian Tobacco, Pukeweed, and Vomitwort.

"Some botanists place the genus and its relatives in the separate family Lobeliaceae, others as a subfamily Lobelioideae within the Campanulaceae. The Angiosperm Phylogeny Group did not make a firm decision in this, listing the genus under both families.

"The genus is named after the Belgian botanist Matthias de Lobel (1538–1616). (Wikipedia)

Detailed description and cultural information:
www.plantzafrica.com/plantklm/lobeliavalida.htm

Additional views of L. valida:
www.flickr.com/photos/jim-sf/5056115598/in/photostream/
www.flickr.com/photos/jim-sf/5059063997/in/photostream/

Photographed in my garden in San Francisco, California

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