Green caterpillars feeding on rosescan gnaw holes in the leaves or cause their deformation. If we do not control these pests of roses, they can strip the leaves of the bushes in the blink of an eye, which reduces the decorative value of roses and weakens their growth. And quick intervention can save our roses. First, however, it is worth identifying the enemy carefully to choose the best way tofighting green caterpillars on rose leaves
Green caterpillars on roses - rosebud larvae
Green caterpillars on roses - Hymenoptera larvae
Every year, Hymenoptera larvae of the Tenthredinidae family are found on the leaves of roses. Most of themresemble green caterpillars , and their existence results in holes carved in rose leaves.
Rose Deer(Allantus cinctus) - the caterpillar is dark green on the dorsal side, covered with luminous points arranged in transverse stripes. Rosewood larvae feed on the underside of the rose leaves, scraping the crumb from the leaf plate, forming the so-called the windows and then gnawing holes between the nerves. During rest, the larva curls into a characteristic spiral. In addition to roses, the rose dog can also attack wild strawberries and strawberries.
Rose marker(Arge ochropus),Cinderella marker(Arge pagana) - the larvae of the rose marker and cinderella marker feed on rose leaves, by eating the leaves from the edge to the main vein, causing the so-called pigeon.The caterpillars reach a length of about 3 cm, they are colored light green, while the head is yellow. The body is covered with numerous black spots or light yellow stripes. The abdomen during foraging is characteristically bent upwards in a vertical position or curled downwards. Two generations of the pest develop during the year - the first in June, the second in August.
Rose slime mold(Caliroa aethiops) - the larvae of the pest feed on the upper side of rose leaves from June to August. They are yellow-green with a red head and covered with a thick layer of dark mucus. The body of the larvae is 10 mm long, club-shaped and equipped with 11 pairs of legs. The mycelium larvae eat away the parenchyma, leaving only leaf innervation. This leads to the so-called leaf skeleton. The leaves on the affected rose bush turn brown, dry and fall off.
Rose Nimułka(Blennocampa pusilla) - the first symptoms of the nimule occurrence can be observed in May.The rose leaves curl into a characteristic roll, inside which in summer the egg hatches a whitish and later green 8-9 mm long curled larva in the shape of a letter C. Affected leaves turn yellow, deformed, and the entire bush weakens.
Green caterpillars on roses - rose nimul
Fighting hymenoptera larvae on rosesis not difficult. Foraging individually, the caterpillars are clearly visible and can be easily removed from the bush and destroyed mechanically. Sometimes it is enough to transplant a bush to another place, because pests appear every year in the same place where they winter in the ground. Chemical preparations such as Deltam (formerly known as Decis), as well as Karate Zeon 050 CS or Karate Gold are highly effective. These are concentrates for the preparation of the spray. If we do not have experience in the use of plant protection products, we can reach for ready-to-use products Deltam AL 1L and Karate Spray 750ml, sold in a spray bottle.Spray one of these preparations twice a season, 14 days apart.
Green caterpillars on roses - butterflies from the tortoise family
In the form ofgreen caterpillars on rosesthere may also be larvae of butterflies (Lepidoptera) from the tortoise family.
Rosewood scroll(Cacoecia rosana syn. Archips rosana) - it is a small (2.5 cm) butterfly whose larvae feed on many species of fruit plants (apple, pear, plum, raspberry) and on roses. Caterpillars are olive green, growing up to 22 mm in length. They forage hidden in tubular and wrapped leaves, gnawing large, irregular holes in the leaves and damaging flower buds. In places of damage, cork tissue develops.
Rose petalite(Hedya ochroleucana) - caterpillars of this butterfly feed mainly on roses, but occasionally they can also appear on apple trees.The larvae make rose leaves into large nests, inside which they feed. Their body is 16-18 mm long, gray-green or olive-green in color with distinct warts.
Fighting sandwich larvaeis more difficult than fighting hymenoptera larvae as they feed hidden in rolled leaves. Collect all curled and leafy leaves and destroy them mechanically. In the case of a larger number of shrubs, we can use the above-mentioned Deltam or Karate preparations.
Therose pest control agentscan be ordered in our store. We guarantee low prices, efficient service and fast shipping of plant protection products!
MSc Eng. Agnieszka Lach
