L. botrana is one of the most important pests of grapevines. They can have several generations per season, depending on local conditions such as climate, altitude or light intensity, from only two in the northern part of its range up to four around the Mediterranean, or (seldom) even five. Eggs (40-60 per female) are mostly laid singly, preferably in sun-protected places in inflorescences or in bunches of grapes, in the folds of dry leaves, under the bark or the straw…
Cydia pomonella adults have a wingspan of about 15-22 mm. Their forewings are gray to dark brown and bear a copper-colored circular marking near the tip of the forewing; the hindwings are brown. The larvae are white when newly hatched, but soon become pink and are up to 20 mm long. C. pomonella females lay 50-100 single eggs each, directly on the developing fruits or on adjacent leaves or shoots. The larvae hatch 5-18 days later and shortly after they…
M. persicae is a small green aphid and is the most significant aphid pest of peach trees, causing decreased growth, shriveling of the leaves and the death of various tissues. It is also hazardous because it acts as a vector for the transport of plant viruses, such as potato virus Y and potato leafroll virus to members of the nightshade/potato family Solanaceae, and various mosaic viruses to many other food crops. M. persicae is a globally significant crop pest that…
S . furcifera is a migratory insect that is one of the most important pest species on rice in many Asian countries but problematic pest throughout the main rice-growing areas of Oceania and Australia too. The nymphs and adults of S. furcifera are phloem feeders. They prefer young plants, but all growth stages can be attacked. Plant injury results mainly from the loss of water and nutrients with the extracted sap. In addition to causing direct damage, S. furcifera…
P. xylostella is a highly migratory, cosmopolitan species and one of the most important pest of cruciferous crops worldwide. Globally, direct losses and control costs are estimated to be US$ 1 billion. In temperate regions, P. xylostella are unable to overwinter and therefore annual outbreaks are attributed to migration, but in tropical and subtropical regions there can be a large number of continuous generations per year. P. xylostella is considered to be one of the most difficult pests to control…
The housefly, Musca domestica, is a serious threat to human and animal health. Houseflies are vectors of more than 100 human and animal intestinal diseases. They are capable of transmitting parasites that cause diseases such as typhoid fever, cholera, bacillary dysentery, infantile diarrhea, tuberculosis, plague, leprosy, yaws, samonellosis, trachoma, and anthrax. Animal health concerns include the transmission of pinkeye. Houseflies can carry streptococcus and staphylococcus which are responsible for mastitis in dairy cattle. They are also responsible for decreased feed…
IRAC Philippines was initially formed in 2008 as an IRAC Diamide Working Group and then in 2011 the IRM activities were coordinated with CropLife Philippines and other stakeholders. The group continues to be very active in developing training materials and running numerous “Train the Trainer” programs around the country. Report in brief from 2021/22: Meetings and training in the field has been significantly restricted due to COVID but work has progressed through monthly Zoom calls, webinar MoA and IRM…
(Download the information as a pdf file) IRAC International Insecticide Mixture Statement As with applying single active ingredient products, insecticide mixture products should be used with careful consideration of the characteristics of the individual active substances, use pattern and pest complex targeted. The primary intention for the use of an insecticide mixture (tank-mix or pre-formulated mixture) is, in most cases, not resistance management, but pest management (Pests include species relevant to both crop protection and public health). The following…