Introduction Rhabdocline needle cast is one of the most serious diseases to afflict Douglas-fir. The disease is caused by the fungal pathogens Rhabdocline pseudotsugae and…
Introduction Phomopsis blight of juniper, also called twig blight of juniper, nursery blight, cedar blight, juniper blight, or needle blight is a significant fungal disease…
Introduction Swiss needle cast is an important fungal disease of Douglas-fir. It is one of the most common diseases to afflict Douglas-fir, alongside Rhabdocline needle…
Introduction Downy mildew is a plant disease that affects a bevy of economic and ornamental plants. Unlike powdery mildew, which is a true fungus, downy…
Introduction Blossom end rot is a common physiological disorder of several important fruits and vegetables. It can often be observed in commercial nurseries and home…
Introduction Spotted lanternfly (Lycorma delicatula), also known as lanternm+oth, is a moth-like insect that infests a wide range of plants. It is named for its…
Introduction Septoria leaf spot, also called septoria leaf blight, septoria leaf blotch, septoria leaf canker, and tomato leaf spot, is a fungal disease that infects…
Introduction Japanese maple scale (Lopholeucaspis japonica), also known as Japanese scale or pear white scale, is an invasive pest that infests a wide range of…
Introduction Late blight is a serious fungal disease of tomato and potato plants. It is caused by the pathogen Phytophthora infestans. The pathogen was first…
Introduction Early blight is a serious fungal disease that afflicts tomato and potato plants. It is caused by two closely related fungi: Alternaria solani and…
Introduction White prunicola scale (Pseudaulalacaspis prunicola) is an armored scale insect that infects members of the Prunus species, and various other ornamental plants. It is…
Introduction White peach scale (Pseudaulacaspis pentagona), also called white scale, West Indian peach scale, and oleander scale, is an armored scale insect that infests various…
Introduction Butternut canker is a fungal disease that attacks Juglans cinerea, also known as butternut or white walnut. The disease is caused by the pathogen,…
Introduction Brown rot, also called European brown rot, is a fungal disease that infects the blossoms and fruit of stone fruit trees, almond, and occasionally…
Introduction Verticilium wilt (Verticilium) is a fungal disease that infects over 400 plant species. It is caused by six species of the Verticilium genus: V.…
Introduction The snow fly (Chionea) is a wingless crane fly in the genus Limoniid. It is notable for being one of the few insects to…
This is the fourth and final part of a series on Kousa dogwood cultivars. Introduction Kousa dogwood (Cornus kousa), also referred to as Benthamia kousa,…
This is the third part of a series on Kousa dogwood cultivars. Introduction Kousa dogwood (Cornus kousa), also referred to as Benthamia kousa, Cynoxylon kousa,…
This is the second part of a series on Kousa dogwood cultivars. Introduction Kousa dogwood (Cornus kousa), also referred to as Benthamia kousa, Cynoxylon kousa,…
Introduction Kousa dogwood (Cornus kousa), also referred to as Benthamia kousa, Cynoxylon kousa, Chinese dogwood, Kousa, Korean dogwood, and Japanese dogwood is a popular ornamental…