David Owens, Extension Entomologist, owensd@udel.edu We captured our first San Jose Scale on April 28 and April 29 on pheromone traps. Sometime earlier this week, crawlers should have become active (400-450 degree days past biofix). If you have had fruit… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Biennial or alternate bearing refers to the tendency of perennial fruits to put on a heavy crop one year and then little or no fruit the second year. This is most common… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Fruit trees commonly set more fruit than they will carry and chemical, mechanical, or hand thinning is done to reduce fruit loads, increase fruit size, and limit alternate year bearing. Natural fruit… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu The week of April 21-28 saw our first captures of male San Jose scale in pheromone traps in all three orchards in which we have traps. Trap captures are used to set a ‘biofix’ to… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu Tree Fruit Scout for plum curculio. We have accumulated enough degree days to where they should be laying eggs. First egg lay occurs around 240–300 degree days; peak egg lay is predicted at 380-390 degree… Continue Reading
