HORTICULTURAL CALENDAR. 
431 
which were evidently intended for the food of the young when hatched. Unfor¬ 
tunately the nest was destroyed before we had an opportunity of minutely exa 
mining it as we could have wished. We endeavoured to capture the parent, but 
without success, yet from its appearance we conclude it to be the Odynerus bifas 
ciatus, which we apprehend is a very rare species. 
Meteorology.— The remarkably severe frost on the 4th of August, was ano¬ 
ther proof of the fact, that plants may be strongly frozen, although the air re¬ 
mains constantly several degrees above the freezing point. The kidney beans, 
and various other productions, were materially injured at Chatsworth, and other 
places around, whilst the thermometer, hanging against a north wall, stood at 
nearly 40 degrees Fahr. Probably the heat retained by the bricks might consi 
derably affect the mercury, but we have found that the white frosts prevalent in 
spring and early in the autumn seldom sink the mercury very low in the tube, 
since it often stands above the freezing point, while at the same time vegetation 
has met with a complete stagnation. 
The amount of Sunshine during the month of July is as follows :— 
July 
Morning 
102 hours. 
Evening 
91 hours. 
Total J Average Daily 
193 hours | 6hours 13 min. 33 sec. 
III.—MONTHLY HORTICULTURAL CALENDAR. 
FOR SEPTEMBER. 
FRUIT DEPARTMENT. 
Apple Trees .—Since the various species of caterpillars mentioned last month now go into the 
pupa state ; our readers should follow the directions then given, any time before the middle of 
the month. 
Buds put in during last month and July will require their bandages loosening. 
Cherry Trees .—If they are infested with insects, follow the directions given last month 
The Morellas will require netting, to preserve the fruit from birds. Those in pots for forcing, 
if the wood be ripe, should be placed under a north wall. 
Figs on the open walls being now ripe, refrain from watering till the fruit is gathered ; those 
in pots must still be supplied with water. 
Gooseberry Trees infested with caterpillars, now the fruit is gathered, should be treated as 
recommended last month. 
Peach and Nectarine Trees .—The fruit being now ripe, although infested with the red spider 
or other insects, all operations must he suspended, unt 1 after the fruit is gathered. They may 
then be treated as recommended page 336. Treat those in pots in the same manner as recom¬ 
mended for cherries. 
Pear Trees; if infested with the slimy larva, dust, on a dry day, with quick lime, and, iti a 
few days afterwards, wash the trees clean by means of a liquid. This must be done before 
the fruit begins to ripen. 
Plum Trees, if infested with the Aphis, as soon as the fruit is gathered, use the mixture re¬ 
commended, page 33-5. The best time to apply it is the first thing in the morning, and late in 
the evening, for, if the sun shines bright, the leaves may snlfer injury. 
Raspberries , if troubled with the Aphides, wash with some soap suds and tobacco-water, in 
the proportions of one gallon of the latter to four of the former. 
Strawberries in Pots, keep free from runners; and plant new beds on good strong loam. 
Vines in Pots being now brought into the vinery, will ripen their fruit at the eud of January. 
