Our navigation bar is loading . . .

 


 

Jesus Christ Saves Ministries

Helping San Diego, California and beyond since 1997.  




 

JCSM's Top 1000 Christian Sites - Free Traffic Sharing Service!


Do you need volunteer, community service, work, military or court hours?

Click here and add this page to your favorites!

Return to the JCSM Study Center!

Encyclopedia Britannica



PLUM

This article appears in Volume V21, Page 855 of the Encyclopedia Britannica.

Encyclopedia Britannica - Main :: PIG-POL
PLUM , the English name both for certain kinds of tree and also generally for their fruit. The plum tree belongs to the genus Prunus, natural order Rosaceae. Cultivated plums are supposed to have originated from one or other of the species P. domestica (wild plum) or P. insititia (bullace). The
young
  shoots of P. domestica are glabrous, and the fruit oblong; in P. insititia the
young
  shoots are pubescent, and the fruit more or less globose. A third species, the common sloe or blackthorn, P. spinosa, has stout spines; its
flowers
  expand before the leaves; and its fruit is very rough to the
taste
 , in which particulars it differs from the two preceding. These
Culinary Plums.
Early Prolific . . . . e. July Victoria . . . Sept.
Belle de
Louvain
  . . Aug. White Magnum Bonum Sept.
Belgian Purple . m. Aug.
Pond
 's Seedling . . . m. Sept.
Czar e. Aug. Diamond m. Sept.
Pershore . . . . e. Aug. Monarch . . . . e. Sept.
Prince Englebert . e. Aug. Grand Duke . . Oct.
Mitchelsons' . . . . b. Sept. Wyedale e. Oct.
Diseases.The Plum is subject to several diseases of fungal origin. A widespread disease known as pocket-plums or bladder-plums is due to an ascomycetous fungus, Exoascus pruni, the mycelium of which lives parasitically in the tissues of the host plant, passes into the ovary of the flower and causes the characteristic malformation of the fruit which becomes a deformed, sometimes curved or flattened, wrinkled dry structure, with a hollow occupying the place of the stone; the bladder plums are yellow at first, subsequently dingy red. The reproductive spores are borne in sacs (asci) which form a dense layer on the surface, appearing like a
bloom
  in July; they are scattered by the wind and propagate the disease. The only remedy is to cut off and burn the diseased branches.
Plum-
leaf
  blister is caused by Polystigma rubrum, a pyrenomycetous fungus which forms thick fleshy reddish patches on the leaves.
PLUMBAGO
The reproductive spores are formed in embedded flesh-shaped receptacles (perithecia) and scattered after the leaves have fallen. The
spots are not often so numerous
as to do much harm to the leaves, air but where the disease is serious
diseased leaves should be collected
and burned. Sloes and bird-
cherries should be removed from
the neighbourhood of plum-trees,
as the various disease-producing
insects and fungi live also on these
species. The branches are some-
times attacked by weevils (Rhyn-
cites) and the larvae of various
moths, and saw-flies (chiefly Erio-
campa) feed on the leaves, and out young branches and leaves are sometimes invaded by Aphides.
Leaf
 -feeding beetles and larvae of moths are best got rid of by shaking the branches and collecting the insects. Slug-worms or saw-fly larvae require treatment by washing with, soapsuds, tobacco and lime-water or
hellebore
  solution, and Aphides by syringing from below and removing all surplus young twigs.


End of Article: PLUM


If you wish, you can link directly to this article.
<a href="http://jcsm.org/StudyCenter/Encyclopedia/PIG_POL/PLUM.html">
PLUM
</a>


(Previous)
PLUCKER, JULIUS (18or-1868)
(Next)
PLUMBAGO (from Lat. plum-bum, lead)



 
 


JCSM was founded in 1997 and exists to help the community and bring people into a life-changing and productive relationship with Jesus Christ. JCSM offers over 200,000 free web pages, including its weekly inspirational emails that were sent continuously for over a decade.

Jesus Christ Saves Ministries
P.O. Box 9297
San Diego, CA  92169
1-888-887-0417 or Email

JCSM is a 501(c)(3), non-profit organization. Copyright © 1997-2012.
 

 

Sponsored Advertisements

Online First Aid and CPR Certification  .  DHA Solutions  .  PB Happy Hour Specials  .  Improvising Made Easy For Guitar and Bass  .  The Skeptic's Annotated Bible: Corrected and Explained  .  Home Equity Loans  .  First Aid and CPR Online  .  San Diego Music Lessons  .  10,000 Wise Quotes and Spiritual Sayings  .  Blow Up Your Site (For Free!)  .  San Diego DUI Lawyers  .  Jason Gastrich  .  Jordan Faith Gastrich  .  Divorce Secrets Revealed  .  Post Your Ad Link Free  .  San Diego Soccer Training  .  JCSM  .  Download Sermons  .  Custom Religious Banners, Build A Sign  .  Christian Singles Dating  .  Christian T-Shirts  .  Healing Christian Prayer  .  Bumper Authority  .  Personalized Blogs and Email  .  San Diego Haircuts  .  The Do the Math Diet  .  Stop Twitter Spam  .  Christian Conservative Work at Home Network  .  The Website of the Lord