Insects Injurious to the Baspherry . 



423 



several beetles seemingly attack une blossom, for I liave fre(|nently 

 found three larv;e in a single fniitlet. The larva' Inirrow into the 

 receptacle first ijf all, and as they grow the)' niay attack the de- 

 veloping fruitlets that go to form the berry and so cause dei'ormed 

 raspberries. Sometimes one side of tlie berry is damaged and 

 aborted, at others the entire fruit is stopped from de\'eloping. When 

 the fruit is ripening and they attack it, and they have tuirnelled tlie 

 receptacle, the whole fruit shrivels up and falls. Tlie larva is dull 

 and yellowish, now and again almost white, or grey, with Ijrowu 

 nrarkings in the middle of all the segments; the head is brown and 

 flattened and the jaws comparatively strong ; on the first three seg- 

 ments are three pairs of jointed legs, and on the anal segment is a 

 more or less pronounced rudimentary leg and two pointed curved 

 spines ; the rudimen- 

 tary proleg is in tlie 

 form of a cylindrical 

 process on the under- 

 side. When full grown 

 they reach J.- inch. On 

 reaching maturity 

 they leave the fruit 

 and crawl about for a 

 little while previous 

 to pupating. They 

 mainly live in tunnels 

 in the receptacle, and 

 feed upon the fruit 

 from the inside where 

 it comes in contact 



with the receptacle. It is not at all imusual to see them crawl from 

 one fruit to another, and enter the sound fruit at its base and then 

 the receptacle, into which they at once burrow. Fruit attacked first 

 by the maggots has the hole of the tunnel small at tlie top and large 

 Ijelow ; ^vhen mature maggots enter the fruit, they seem to ci'avd up 

 between the receptacle and the fruit, and enter by a large hole which 

 they form at the summit of the receptacle. The larva:' pupate m 

 three places, namely, rn the soil around the stocks, in crevices m the 

 stakes, and under the rough rind on the canes. The pupa^ remain all 

 the winter and give rise to the beetles m tlie following spring ni time 

 to attack the blossoms. 



Invasion of a plantation may also come in another way, namely, 

 from the progeny derived from those that feed on the wild blackberries. 



A, ]aiTa(gira(iy fiilargea); li, lavva (rO Liiti-aiii',: rur 

 C, damaged fiaiit, lii.Ic ('.) caustd liy lana. 



