82 



APRIL. 



Search for 



Caterpillars of Winter Moths (see pages 46 and 47). 



Very small, at first greyish, then green with pale 

 stripes. 



Caterpillars of Mottled Umber Moth (reddish brown above 

 with yellowish sides) (see page 48). 



MAY. 



Spray with Potassium Sulphide (|-oz. to a gallon of water) the 

 opening lea\es to prevent attacks of fungus (see pages 23 and 

 25)- 



and through June and July 

 Look out for and hand pick 



Rose Beetles, Cockchafers, Sawflies, Rose Slugworm 

 (pale yellowish green with black stripe and orange 

 head, i-6th inch long) (see pages 30-39). 

 Larvae of Rose Slug Worm (see page 36). 

 Green Rose Maggot, especially in young shoots (spun 



together) (see page 49). 

 Brown Rose Grub ditto (see page 49). 

 Yellow Rose Grub (see page 50). 

 Red Rose Maggot (reddish brown) (see page 48). 

 Rose Leaf-Miner, and first brood of Rose Leaf-Hoppers 



(see pages 51 and 64). 



Caterpillar of Vapourer Moth (dark grey, spotted red, five 

 tufts of dark hair, i| to 2-ins.) (see page 40). 



Watch for first attack of Mildew on leaves, and spray with 

 Sulphuric Acid (one part in 1,000 of water) or Potassium 

 Sulphide, as above (see pages 22 and 23). 



JUNE. 



Search for Cuckoo-Spit insect, especially upon Roses on walls 

 and Ramblers. Syringe with water or insecticide, or hand 

 pick (see page 63). 



and throughout the Summer 



Watch for Green Fly and kill by syringing with soft soap or 

 other insecticides (see page 57). 



Watch for first outbreak of Rust or orange fungus ; if on stem 

 of plant rub off with Methylated Spirit (see page 25). 



JULY. 



Watch for and treat 



Second attack of Mildew (see page 21). 



Black Spot (see page 25). 



Rose Leaf- Scorch (see page 26). 

 and onwards till Autumn 

 Search for Rose Emphytus larvae (dark green with white spots 



and white legs, curled under the leaf or holding on by front 

 feet) (see page 38). 



