Mother-In-Laws - What To Do With Them

Known as the plant for brown thumbs, perfect as indoor air-cleaning plants and for architectural beauty, Mother-in-law plants, Sansevieria hyacinthoidesare are also on the FLEPPC, Florida Exotic Pest Plant Council's Invasive Species Category II list in South Florida.

But Sanseverias spp. can be used in the landscape beautifully and responsibly. By controlling where this drought-tolerant species's roots can spread, the landscape architects of this commercial property not only have an easy to care for garden bed, but selected an architecturally attractive choice!

Kudos for excellent design!


Good use of Sanseveria spp. in landscape.


#gardenchat 

California Scientists Release Citrus Psyllid Predator

Tamarixia radiata

California scientists just released the Tamarixia radiata - a predator wasp that attacks our dreaded Asian citrus psyllid.

UC Riverside Executive Vice Chancellor Dallas Rabenstein and Mark Hoddle, the director of the Center for Invasive Species Research, released Tamarixia radiata – tiny, stingless parasitic wasps that lay eggs in ACP nymphs – in a citrus grove near the UCR Botanic Gardens. A total of 281 wasps (95 males and 186 females) were released.



Over the next several years, UCR and California Department of Agriculture Food and Agriculture (CDFA) scientists will raise thousands of Tamarixia for release throughout California. The Tamarixia larvae will eat the ACP nymphs, killing them, and emerge as adults about 12 days later. Adult female Tamarixia also eat other ACP nymphs, killing many in the process.

Read more.

Management of Asian Citrus Psyllid - IFAS

Tamarixia radiata - life cycle - Cornell

Why Are My Citrus Leaves Curling?

Updated Florida Exotic Invasive Plant List

The Florida Pest Plant Council has updated their exotic invasive plant lists for 2011.  The list is an excellent resource for ensuring landscape selections do not include plants that can escape and endanger native habitats. FLEPPC separatesd invasives into two categories, I and II. 

Category I includes "invasive exotics that are altering native plant communities by displacing native species, changing community structures or ecological functions, or hybridizing with natives. This definition does not rely on the economic severity or geographic range."

Category II invasives are plants "that have increased in abundance or frequency but have not yet altered Florida plant communities to the extent shown by Category I species. These species may become ranked Category I, if ecological damage is demonstrated of the problem, but on the documented ecological damage caused."

New plants added to the 2011 Category I list:

• Deparia petersenii, Japanese false spleenwort
• Lumnitzera racemosa, black mangrove - Not to be confused with native black mangrove, Avicennia germinans
• Phymatosorus scolopendria, serpent fern, wart fern

New plants added to the 2011 Category II list:

• Ardesia japonica, Japanese ardesia
• Bruguiera gymnorrhiza, large-leaved mangrove
• Cocos nucifera, coconut palm
• Syzygium jambos,  Malabar plum, rose apple

Corrections on the plant list include: 

Jasminum sambac and Solanum jamaicense removed from Category II based on lack of data in natural areas. Urena lobata moved from Category II to Category I.



USDA-NRCS

City and county planners, nurseries and growers, and landscape architects and designers should make note of these new changees.