542 



over Australia the larvae are very severely parasitised by a small 

 Ichneumon, and so numerous are specimens of this insect that it is 

 doubtful if 20 per cent, of Plutella larvae ever become moths. The 

 larva of the parasite is a small legless maggot which, when full- 

 fed, constructs a small cocoon within that of the larva it has 

 destroyed. The larvae of Plutella have numerous other enemies, 

 aftiongst which may be mentioned two species of Syrphus flies, two 

 Chalcids, and several predaceous bugs. 



During the past eighteen months two additional species of 

 parasites have been introduced into this State. 



Remedy. Spray with Nos. 11, 13, or 19, or sprinkle with Paris 

 green, loz., in flour or lime, 51bs. 



Another species of moth which is likely (Evergestis rimosalis), 

 the larvae of which does much damage to cabbage and cauliflower 

 and also turnips, is also found in this State. The moth is a pretty 

 yellow, with the front wings irregularly spotted and striped 

 with chocolate and paler yellow markings. No parasites have 

 been bred from the larvae. 



Remedy. Spray with Paris green, loz. in flour or lime 51bs., or 

 spray with Nos. 11, 13, or 19. 



CINNERARIA FLY (Phytomyzo, nigricornis) . 



The larvae of the Cinneraria Fly is a leaf miner, and is very 

 common in this State early in the Spring. Its chief food plants 

 are the turnip, cinneraria, chrysanthemum, marguerite, sunflower, 

 and sugar beet, sow thistle, etc., etc. 



Remedy. Pick and burn all infested leaves. Parasites destroy 

 more than eighty per cent, of the pupa of this fly. 



CASE-MOTHS OR BAG-WORMS. 



Fruitgrowers are familiar with the little inverted cone-shaped 

 cases which are to be found hanging to the branches and twigs of 

 their trees. There are two kinds which attack apple and pear trees, 

 and the cases should be pulled of and destroyed, as the caterpillars 

 contained in them are responsible for many of the disfiguring marks 

 to be found both on fruit and leaves. They are night workers, and 

 remain suspended by a silken thread during the day. The cases 

 are beautifully constructed out of the little bits of wood and leaves 

 fastened together by a strongly woven silken material secreted by 

 the insect. In some places they are most abundant. 



Remedy. Hand pick and burn. 



A DESTRUCTIVE COCKCHAFER (Anoplosthetus Opalinus Brulle) , 



Cockchafers are large beetles, belonging to a family known as 

 Scardbaeidse or Lamellicornes. Mr. Lea, in writing on this insect, 



